87福利午夜福利视频_欧美午夜性春猛交xxx_www亚洲精品少妇裸乳一区二区_国内原创免费自拍视频网址_伊人久久大香线蕉影院_美腿制服丝袜国产亚洲_日韩网红少妇无码视频香港_中文字幕乱码系列免费_欧美成人精品三级在线观看_师精品91自产拍在线观看二区
Your location:Home>>FAQ

How to buy power cord

Release date:2017-09-26 14:38:39

Our daily life has long been no electricity, and let us be able to use a variety of electrical appliances, electronic products, the prerequisite is the power cord. Each family needs a lot of power lines to build a current network that supplies energy to all appliances. If there is no power cord, our daily life will be a mess. It is also because of its importance, so in the purchase time, we must pay attention to the standard.

So, what should the power cord should follow? First, formal. As far as possible in the regular shopping malls to buy, and select the product must have a national electrical certification mark and trademark, specifications and other voltage. Second, the packaging. Roller packaging can reduce the wear of the insulation, and packaging should have a complete certificate. Finally, the weight. Good quality of the power box weight are within the specified range, in general, the cross-sectional area of ??1.5mm2 single-strand copper wire, 100 meters in weight between 1.8kg to 1.9kg.

In addition to these standards, in the purchase of power lines, you can intercept an insulation layer to see if the core is located in the middle of the insulation layer, the core of the power cord will lead to weak to avoid easy to be punctured.

Article keywords:
upper:No last one next:Mould design and develop
網(wǎng)站ICP備案號(hào):粵ICP備15087071號(hào)-1

Copyright © GuangZhou Bosslyn Electric CO.,LTD   Zip code:511495   www.bosslyn.com

Facebook:https://www.facebook.com/Guangzhou-Bosslyn-Eletric-CoLtd-1892609444319933/

Support:Website | zk71  | Manage
87福利午夜福利视频_欧美午夜性春猛交xxx_www亚洲精品少妇裸乳一区二区_国内原创免费自拍视频网址_伊人久久大香线蕉影院_美腿制服丝袜国产亚洲_日韩网红少妇无码视频香港_中文字幕乱码系列免费_欧美成人精品三级在线观看_师精品91自产拍在线观看二区