Pay attention to the suitability of choosing ppe

Powder characteristics

(1) Cohosh brown.

1 Wood fiber fusiform, with one end thick, one end small, slightly curved, the end acuminate, oblique tip, some round with a dimple or a short divergence on one side, diameter 13-55μm, length 110- 250μm, wall thickness about 4μm, lignan, pit herringbone or cross shape.

2 The main guideline for NASA is the bordered tracheal catheter, which also has a reticulated, ladder-patterned, threaded catheter, 7-100 μm in diameter.

3 wood thin-walled cells like a square or rectangular, slightly thicker wall, pitted dot-like.

4 Epidermal cells yellow-brown. Polygonal surface view, wall thickness 4-15μm, some peripheral wall and peripheral wall of the tumor thickening, burst into the cell.

5 Starch granules are round and oval in shape, with a diameter of 8-20 μm. The umbilical point is obvious and punctate; more complex particles are composed of 2-14 fractions.

6 The plenum sheath is sparsely yellowish green. Shuttle-shaped, acuminate or obliquely apical, 15-35μm in diameter, slightly thicker in wall 4-5μm, ligneous, pits clear, rounded.

(2) Northern cohosh is white.

1 The wood fibers are slender or slightly fusiform, with some edges not flat, partially narrowed or swollen, and some are bifurcated at one or both ends, occasionally having 3 bifurcations, diameter 20-56 μm, length 476-680 μm, Wall thickness 5-9μm, woody.

2 The starch granules are clustered into agglomerates, single-grained polygons, diameters of 2-7 μm, and umbilical dots.

(3) Off the ephedra white.

1 wood fiber is slender, slightly fusiform or lanceolate, flat, long tip or round blunt, occasional bifurcation, diameter 20-48μm, length 146-408μm, wall thickness 3-7μm, wood Some cells contain brown matter.

2 The plexiform sheath fibers are easy to see, long spindle, with a rounded tip or obtuse tip, 12-24 μm in diameter, 93-180 μm in length, and 3-5 μm in wall thickness, and are lignined, pitted, and pitted. 3 The starch granules are round in shape and have a diameter of 2-24 μm, and the umbilical point is punctate; the complex granules are composed of 2-3 granules.

Movable N2/O2 Gas Plant

Mobile Oxygen Generator Plant,O2 Gas Plant,Vsa Oxygen Plant,Movable N2 Gas Plant

Hangzhou Zhongju air separation equipment manufacturing Co., Ltd , https://www.hzzjkfzz.com

The throttling device is an entire device including a throttling device, a pressure taking device, and a front and a rear measuring tube. When the fluid filled with the pipe flows through the throttling device, a pressure difference is generated before and after the throttling device, and the differential pressure signal is transmitted to the differential pressure gauge through the pressure device to detect the flow rate.

Since the flow coefficient of the standard throttle device is obtained through experiments under certain conditions. Therefore, in addition to strict regulations on the throttling device and the pressure-receiving device, there are strict rules on piping, installation, and use conditions. If the actual work deviates from the specified conditions, the resulting flow error is difficult to estimate.

1. Pipeline conditions (1) The pipe used to install the throttle should be straight and round.

(2) The inner wall of the pipeline can be smooth or rough, but it must be clean and should not contain impurities.

(3) The length of the straight pipe must be long enough before and after the throttle. However, there are often local resistances such as turns, bifurcations, convergences, and gates on industrial pipelines. The original steady flow of the flow through these resistances will be severely disturbed, and then it will recover after a relatively long pipe section. smooth. Therefore, according to different conditions of local resistance, different lengths of straight pipe sections are placed before and after the throttle.

2. Installation requirements (1) The installation of the throttling element in the pipeline shall ensure that the front surface of the throttling element is perpendicular to the axis of the pipeline. The verticality shall not exceed ±1°. At the same time, it shall ensure that the opening is concentric with the pipeline.

(2) Gaskets for clamping the throttling element (including gaskets between flanges and flanges, annular flanges and pressure-reducing flanges and orifice plates), shall not be clamped Draw into the inner wall of the pipe. The gasket should not be too thick, preferably not more than 0.5mm.

(3) The newly installed piping system must be installed after the piping is flushed and cleaned.

(4) Valves that are used to regulate flow are preferably installed outside the minimum straight section after the throttle.

(5) There must be no abrupt changes in the diameter of the pipe joints of the throttling device.

3. Use Requirements When the standard throttling device is in use, the following conditions must be satisfied: (1) The fluid must be filled with a circular tube and a throttling device and continuously flow through the tube.

(2) The fluid must be a Newtonian fluid that is physically and thermally homogeneous, single-phase, or can be considered single-phase, including gases, solutions.

(3) No phase change occurs when the fluid flows through the throttle.

(4) Fluid flow does not change with time or changes slowly.

(5) Before the fluid flows through the throttle, its flow must be parallel to the axis of the pipeline, and no rotational flow is allowed.

Throttle devices come in a wide variety of forms. Changzhou Chengfeng has the most commonly used throttling devices in actual production, namely standard orifice plates, standard nozzles, and standard venturi tubes. In this article, to all flow meter manufacturers and users, Changzhou Chengfeng Flow Meter Co., Ltd., in its own development, also hopes that all industry colleagues, especially flow meter users, can really buy products that suit their needs. Maintain the product well.

Compressor housing

Compressor housing, K27 Turbo Housing Compressor Housing for Turbocharger, China Compressor housing

Zhuowei Auto Parts Co., Ltd. , http://www.gzfuelpumpfilter.com

An Lifang spring new series in the name of freedom, to follow the rhythm of the heart, with simple black and white lines in the fresh stencil cloth outline out of print.

Lifelike style, free bloom attitude, delicate lace under a body, gave birth to two souls, like breathtaking two flowers, with a changeable posture, sometimes refined and elegant and sometimes ***y big, in the emotional and rational Multiple show, more attractive charm.

LED SMD Downlight

LED SMD Downlight,Smd LED Downlight,Smart LED Downlights,Square LED Downlights

Wenzhou DGT Lighting Co., Ltd. , https://www.dgtlight.com

In recent years, with new energy and our lives getting closer and closer, new energy vehicles have also developed greatly, which requires a large number of charging needs. However, most of the charging piles are outdoors and are vulnerable to induced lightning surges. When subjected to a lightning strike, the electronic system and communication system of the charging pile can be easily damaged, which will result in the vehicle not being able to charge, or the vehicle being charged. This may have serious consequences, and the غير مجاز مي باشدt of post-maintenance is also considerable.

Stair treads steel grating

Storage Racks  Co., Ltd. , http://www.nbtrailer.com

Pursuit of beauty, taste is the longing for and pursuit of self-worth and lifestyle, is self-expression of feelings of self-expression and natural authentic affirmation of self-worth. Exaggerated flirtatious, exaggerated, self-exaggerated appearance of the cover, "perfect care for the beautiful," simple and natural distributed by the United States, ***y, self, taste and charm. . . . Embodies the Aiduo Li has been found for women in the United States, to create the United States, the United States and the natural distribution of beauty, harmony and beauty underwear culture. From different perspectives to interpret the natural beauty of women: noble, ***y, taste, value, self-interpretation of a woman's true feelings of the true show, this is the beauty of the highest "beauty and ***y."

Love Dolly brand underwear for the perfect care of the beautiful

Love Dolly brand underwear for the perfect care of the beautiful

Pressure Seal Globe Valve

Presure seal Globe Valve normally used in the high pressure main streaming pipeline or high pressure bypass water feeding pipeline etc. The main function is  to cut off/cut on or regulating the medium controlled by electric actuator or handwheel. The sealing principle of pressrue seal seal valve is sealing surface tight off under pressure and they are widely applicated in petrochmical, thermal power plant.

Pressure Seal Globe Valve,Forged Globe Valve,Pressure Seal Valve,Power Station Globe Valve

Yongjia South Trading Co.,Ltd , https://www.n-lvalve.com

In recent years, the rising prices of raw materials, the increase in labor غير مجاز مي باشدts and logistics غير مجاز مي باشدts, and the financial crisis have become major factors restricting the development of the domestic furniture hardware industry. The rapid development of custom furniture also objectively requires the furniture hardware industry to adapt to the times. Trends, combined with market conditions, emphasis on product quality and innovation. In this situation, if the furniture hardware industry wants to continue to move forward, transformation and upgrading will be the key to solving the problem.

As one of the important domestic hardware production bases, it is continuously strengthening the power of scientific and technological innovation, speeding up the process of industrial adjustment and upgrading to explore new models of regional development, so as to promote the transformation and upgrading of cities and industries. The entry of the furniture hardware capital of China will become the best help for the transformation and upgrading of local furniture hardware companies.

At present, there are 800 various types of home hardware and spare parts manufacturing enterprises in the area, including 16 enterprises with an annual output value exceeding 100 million yuan, 200 enterprises above designated size, 10 national high-tech enterprises, and 50 private technology enterprises in Guangdong Province. , 15 companies have become registered suppliers of the United Nations. In addition, the building materials industry home hardware industry has 10 scientific research and development centers, 1 product testing center, 1 well-known trademark in China, 3 well-known trademarks in Guangdong Province, 6 provincial brand-name products and 4 provinces focused on cultivating and developing export brands. . In terms of creating brands, Dongtai, Taiming, Dongrong, and Adams have a number of well-known brands. Among them, the DTC trademark of Guangdong Dongtai Hardware Group has become China's first domestic well-known trademark for slide rails and hinges in the home hardware industry.

In fact, some domestic excellent furniture hardware manufacturers already have the same level of technology as foreign counterparts. However, in the international market division, domestic furniture hardware companies and even the entire hardware industry still play a role of lower-level producers and processors. Shi Lanlan, secretary general of the China Hardware Products Association, said that in terms of home hardware manufacturing, many domestic customers would think of 'not upscale' when it comes to making domestic products.

As one of the leaders in the furniture hardware industry of the building materials industry, Dongtai’s development process provided the most representative role model for other hardware companies in the region. From the establishment of a strong production system to the establishment of a sound quality management system, from providing a wide range of products to the provision of personal customer service, the company’s own brands have gradually become stronger, and the overall competitiveness of the industry has improved significantly, both in the domestic market and in the international market. in the market,

Dongtai's products and services are favored by customers. According to reports, Dongtai Hardware Group has become one of the largest home hardware manufacturers in Asia.

Zhang Dongli, chairman of the China Hardware Products Association, believes that the building materials industry should use this as an opportunity to continue to promote corporate transformation and upgrading in the global industrial chain. Many enterprises in the building materials industry are family-run businesses. Only when they are loyal and loyal and do their own brands, will future generations not only work for foreign brands.

Wu Zhihui, chairman of Guangdong Dongtai Hardware Group, said that the presence of the furniture hardware capital of China allowed us to see the strong development potential of local furniture hardware. In the future, all industries in the country will be clustered here, and the development of the home hardware industry will become the engine for upgrading and transforming furniture hardware. In the future, more furniture hardware companies will go abroad from here! The relevant person in charge of the street said that in the future, the building materials industry will make full use of the brand to show its strength to the outside world.

Threaded Flange

Threaded Pipe Flange,Flange With Threaded Hole,Forged Female Threaded Flange,Din Flange

Jinan Xintai Forging Co., Ltd , https://www.xtdzflange.com

A simple, bright and spacious desktop will improve the mood and efficiency of daily use. I have a very deep feeling in my work and leisure. Do you think too metaphysical? Attach the previous desktop:

The desktops created due to historical problems have caused the operability to be too small. They have even learned words, read books, copied notes, and have no space for writing and writing love letters. They also feel particularly crowded visually, and they are particularly boring when used. a feeling of. This is not conducive to physical health, but also is not conducive to mental health, but also not conducive to the formation of a harmonious and beautiful socialist society. In order to further promote the spaciousness and operability of the table and improve the user's mood and operating experience, it is necessary to give full play to the subjective initiative, improve the awareness of reform, and do a good job in the related tasks of finishing, and do a good job of preventing the excessive consumption of hands. The division of responsibilities has enabled this work to be implemented quickly and steadily, and to form a ledger and desktop story in a timely manner before July 4. In accordance with the requirements of a higher-than-average purchase, this special desktop story is reported as follows:

preview:

Experience: It is known as the “small refrigerator” that is bought after it is bought. The odd type of the chassis, the volume is often gray, the motherboard is horizontal, supports all kinds of motherboards, and supports multiple combination stacks. The internal space can be used as Small compartment or hand-held display box, I put more hard drives are placed inside. Of course, if the brain hole is large enough, the sockets and routers can be put in, and you can really upgrade the chassis for many years. However, one of the disadvantages is that it is not dustproof. Both the main panel and the side panels of the chassis are designed with heat dissipating holes and it is easy to enter the dust. The second is too big. It really takes up space and is too crowded. Because I can't fit my desk under the desk, I'll put it on the side table, HDIM cable, DP cable, USB extension cable and so on. The next plan is to open windows on the acrylic side panels of the chassis.

Experience: After watching everyone's evaluation, began to play 27UD68W and 27UD58B, and later began to tangled 27-inch and 32-inch. As a result, Zhang Damu pushed 2,241 yuan on June 7 and did not hold back his direct hand. 618 offer 2180 yuan, feeling lost a few hundred million. Everyone said that the border can be a horse race and I can accept it myself. The other person said that the brightness is low, and I can feel it. According to the recommended parameters of the foreign forums, the color of the screen was adjusted, and my “astigmatism” feeling did not make any difference. After watching it on the resolution, watching the 1080P monitor has a foggy feeling. One of the disadvantages is that the 27-inch 4K really has a feeling of blinking, too large resolution font is too small. I use win7, DPI zoom 200% and feel uncoordinated; the second disadvantage is 4K film resources less, large size, and under 4K beauty face powder, pores, eyeliner is too clear, but there is a kind of "negative" Effect; Disadvantages The third is to play games, 4K games too eat hardware, and my 970 a lot of games need to lower the picture quality, and you need to add money to 4 Titan nuclear bombs (PS: 1080ti basically meet most of the game). The fourth disadvantage is that for high-resolution games such as I played P clubs, such as "Four Europe", "Failure 2", "Moustache Forming Plan 3" and "Various Stars" and other strategy games. The interface is too small, which seriously affects the decision-making power and judgment. In the end, it will lose the war and be sealed as the earl of Glamorgan by the Emperor Luo.

Use experience: In one sentence, “a good-looking, warm-hearted, warm-hearted, good-looking, hot-cold rider” is used. When you play a computer, you can pour a cup. After you finish drinking, you can rest and rest your eyes, leave the computer desk, and then go back and get a cup back.啥 Disadvantages.

Use experience: Really small investment returns, why not do it. Taking advantage of 618, a large book of East Books, bought 40 books, and I can feel it for a long time. There are too many benefits. The downside is that if you buy it, you don't see it wasting money. It is a Sin. Just after reading "History of ***ual Judgment", I feel hurt by 10,000 points. By the way, for a long time, "The Holy Roman Empire: A Thousand Years of Europe's History" Amazon made a second-hand use, immediately broke his hand and felt happy to explode. This is the second motivation for me to write this review. What is the first motivation? Of course, gold coins.

Yes, there is this to recommend:

Use experience: IKEA's "can be insignificant" pen holder, modern design, concise and generous, have a look at the power of calligraphy.

Finally, as a staff member of the office unit, I did not say anything. I have to write materials overtime. I wish everyone that the delivery of 618 hands will now be completed. I wish you all a pair of eleven long newcomers again.

Plug In Series​  Diode

In the rectifier circuit; the use of diodes in series can increase the back pressure withstand value (usually the sum of the back pressure of all diodes, but it is best to use diodes of the same specification).

In the voltage stabilization circuit; the series connection of the diode is equal to the sum of the voltage stabilization value of the diode. The use of diodes in parallel is theoretically the sum of rated currents, but considering that it is impossible to be absolutely symmetrical, they can only be used below 80% of the total.

TVS transient suppressor diodes work in the same way as regulator diodes, but there are structural differences.The biggest difference is that the PN junction area composed of the general regulator diode is very small, it can withstand the reverse current is small.

Transient Voltage Suppressor,Transient Voltage Suppressor Diode,Series diode

Changzhou Changyuan Electronic Co., Ltd. , https://www.cydiode.com

There are many problems in the installation and operation management of distribution and arrester arresters. Occasionally, users accidentally burn transformers and arrest lightning arresters. For a long time, arresters are installed on the upper side of distribution transformers. According to the operation comparison, this installation method is not reasonable.

1. Arrester installation 1. Existing problems and handling Arrester is generally installed on the upper side of the high-voltage fuse. According to the regulations, “The height of the changing platform from the ground shall not be less than 2.5m.” This will cause damage to the arrester or cause grounding, short circuit, and checkout. At the time, the entire 10kV line needs to be powered off and it is not conducive to loading and unloading. In addition, the grounding lead of the arrester is too long from the ground and does not meet the relevant technical requirements. In view of the above problems, we have changed the mounting position of the distribution lightning arrester and installed it on the lower side of the high-voltage fuse. This will not affect the protection effect and scope of the arrester, but also help the normal assembly and disassembly of the arrester, reducing the number of power outages of the entire line. At the same time, when the performance of the arrester is reduced by lightning, the freewheeling current will inevitably cause the failure of the arrester itself, and the fuse will fuse, which will isolate the fault point, reduce the chance of single-phase or short-circuit tripping of the line, and increase the power supply. Reliability rate.

2. Installation Precautions The mounting point of the arrester should be more than 0.7m away from the fuse to ensure that the safety distance specified in the “Safety Practice for Electric Industry” is met during maintenance. The lead length of the arrester should be as short as possible and reliable. The wire should use 35-50mm2 black wire to reduce the lead reactance and reduce the residual voltage. The distance between the arrester and the transformer should be more than 2m, increase the inductance on the wire, and increase the relative lightning resistance level of the transformer. When the lightning arrester is removed and reinstalled, it must not be tied with wire or wire, but should be re-used with special fixtures to prevent creepage. In addition, the down conductor of the lightning arrester must be properly connected and tied on the cross arm and the pole to prevent accidents caused by grounding, short circuit or damage to the transformer when the arrester is exploded.

II. Problems in the Operation of Arrester

2.1 As the damage, breakdown, corrosion is not easy to install, the source of funds and the غير مجاز مي باشدt burden is difficult, and the village electrician's sense of responsibility is not strong, there are factors such as Pang Hing psychological, can not be installed, supplemented, and objectively lead to low installation rate and installation of arresters Not enough.

2.2 Due to the large workload of regular arrester arresters, a considerable number of arresters have not been calibrated for many years, and the formation of a malfunctioning arrester is still operating on the Internet.

2.3 As the responsibility of the construction, installation, and maintenance personnel is not strong, most of the arresters during operation have looseness, tilt, and misplacement of the mounting position, leads off, and other abnormal conditions.

2.4 Arrester products are of low quality and cannot effectively protect them.

2.5 The ground lead strand breaks the strand and winds, and some even use the wire instead of the ground lead wire, and most of them have the problem of large grounding resistance.

Third, how to rectify

3.1 Increase publicity and education to allow users to understand the necessity and importance of installing surge arresters.

3.2 The electrician should master the arrester installation process, regulate the construction, and leave no sequelae.

3.3 Strengthen the operation and management work, conduct inspections, inspections, and calibrations on a regular basis, and unqualified arresters cannot be operated on the Internet.

3.4 Actively promote the use of zinc oxide surge arresters.

3.5 Make a thorough inspection of the arrester grounding body and the transformer grounding body of all the distribution transformers in the area, and thoroughly handle the grounding resistance.

Adjustable Control Arm

Suspension system is an important part of modern automobile, which has great influence on the ride comfort and handling stability of automobile.

As the guiding and force transmitting component of automobile suspension system, the control arm transfers various forces acting on the wheels to the vehicle body, and ensures that the wheels move according to a certain trajectory. The vehicle control arm connects the wheel and the vehicle body elastically through the ball hinge or bushing respectively. The automobile control arm (including the Bush and ball joint connected with it) should have enough rigidity, strength and service life.

Adjustable Control Arms,Adjustable Control Arm Kit,Adjustable Control Arm Replacement,Jeep Adjustable Control Arm

غير مجاز مي باشدa Trading (Zhoushan) Co., Ltd. , https://www.غير مجاز مي باشدatd.com

Just as you annoyed why there is no one made for a woman's lingerie , the appearance of 37 ° love underwear by no means accidental, her underwear design from the fabric selection, shape modeling, color mix, style Established, designers are looking for the most perfect entry point underwear design. To meet the comfort of women wearing underwear, functional requirements, to create intimate fashion.

Underwear as a woman's second layer of skin, a variety of fashion charm, ***y sultry underwear has become the most intimate modern woman's lover. Apparel designers boldly play the whimsy, the most close to the woman's skin to create a fine and unique objects, so that women readjust their perspectives, to find and examine their hidden beauty.

Underwear Waichuan is an avant-garde Dress style, underwear features designed for the dressing style, it comes from the inspiration of designers inspiration. 37 degrees love the chief designer YE will be the elements of the popular season and underwear the perfect combination of special materials, leading us to experience a different kind of style.

Cestbella Special Gifts

Fashion,Sunglasses,Rose Pattern,Exquisite Watch

Wedding Dress,Wedding Accessories Co., Ltd. , http://www.nbjd.net

Most mothers during pregnancy, due to body size changes, and can not use the constraints of غير مجاز مي باشدmetics and other conditions, easy to lose confidence in themselves, always feel ugly ugly, it is difficult to glamorous.

Is it necessary to be pregnant and fashion insulated? Is the past beautiful and beautiful must have a full stop in pregnancy?

In this regard, Hui Bao 's design director James that "pregnant woman is the world's most beautiful woman," and Whirlibab for 16 years has also been "the best for the world's pregnant women with the most beautiful clothes," and work hard for the Moms bring intimate fashion lifestyle.

Modern healthy living from the inside

Many mothers during pregnancy will have a variety of emotional problems, to this end, Hui Bao held in many places throughout the "Huibao pregnant mother Lecture Hall," the public welfare activities, invited experts to explain to their mothers during pregnancy health knowledge and various Precautions to help them safely through pregnancy. For many years, Whirlpool has been acting to care for these great mothers. In addition, the love of mothers Hui Bao is also reflected in the clothing.

Many people think that as long as buying more than usual freshman, two sizes of clothes enough to deal with the entire pregnancy process, in fact, the professional maternity dress should be more relaxed and comfortable, more conducive to perspiration, which the choice of fabric Made a very high demand. In this regard, James introduced us: "At present, we Hui Bao began to try to use some new environmentally friendly fabrics, from the mother for the environment to create a healthy and healthy atmosphere, such as bamboo fiber fabric, this eco-friendly fabric with absorbent, Breathable, antibacterial and other functions, but does not stimulate the skin, can be said that from the clothing 'intrinsic' to give mom care intimate. 'Fashion, health, environmental protection is advocated by Hui Bao's modern way of life, this way of life should also be From the inside out, the application of eco-friendly eco fabric can be said to be a big step forward for Huibao innovation.

Traditional concept of breaking maternity wear

From 2009 onwards, Hui Bao took the lead in breaking the traditional maternity dress with black, white, gray, coffee and other conventional colors, the use of colorful eye-catching colors, when mothers dressed in Hui Bao clothing, the whole person seems to be a new look, full young and energetic. And since then, the market has launched a similar maternity dress, it can be said that Huibao laid the fashion pioneer status. Recently, Hui Bao has made a pioneering fashion maternity dress industry. "In the past we thought that maternity clothes were worn during pregnancy and would not be worn after pregnancy. In this case, the service life of the clothes is only a few months. We decided Extending the 'life' of maternity dresses, after a series of R & D efforts, we created versatile Maternity Fashions in spring / summer 2012. It is not only for pregnancy but also for non-pregnancy. "Turning to this, James is proud of" Modern women pay great attention to healthy diet and daily exercise. Therefore, in general, only the changes in the three parts of the chest, abdomen and leg during pregnancy are most obvious, and other parts rarely have serious deformation. Therefore, we pay special attention to the design The three parts of the version, so as to achieve the maternity dress, even if not the case of the belt, but also has the same fashion and general fashion effect.

In general, women are already struggling to pick the right outfit, and getting pregnant and picking up the right outfit becomes a tougher job as the baby grows. Sixteen years, Hui Bao has been focused on the fashion maternity dress, caring for the health of mothers, the introduction of maternity dress is no less than today's trendy fashion, so that mothers even in the "fat" ten-month pregnancy, you can Enjoy blooming fashion charm.

USB Charger

Portable high efficient travel charger, can charge multi devices at the same time, every port output mini 5v 1a, max 5v 2.1a. We can meet your specific requirement of the products, like label design. The plug type is US/UK/AU/EU. The material of this product is PC+ABS. All condition of our product is 100% brand new.  

Our products built with input/output overvoltage protection, input/output overcurrent protection, over temperature protection, over power protection and short circuit protection. You can send more details of this product, so that we can offer best service to you! 

Usb Charger,Universal Travel Adapter,Intelligent Usb Charger,Travel Adapter

Shenzhen Waweis Technology Co., Ltd. , https://www.waweis.com