人妻少妇伦在线麻豆M电影,国产精品多人P群无码,中文字幕久久精品无码,级毛片内射视频,荫道BBWBBB高潮潮喷,无套内射A按摩高潮,狠狠做深爱婷婷久久综合一区,久久国产精品久久久久久

The LED fluorescent tube housing produced by Juli Industrial Co., Ltd. is made by suspension production process, and holds many invention patents issued by the country. This process is greatly improved from the traditional process (molding process) widely used in the market. Not only does it have a quantum leap in production speed, but also the product has a smooth surface treatment and a higher light transmission rate. A stress-relief line is set up to effectively prevent the marram phenomenon that occurs when PC undergoes molecular recombination in the future.

Invention patent certificates issued by many countries：
1.Number：201020293467.7　　　Date：2010/08/16
2.Number：201010180922.7　　　Date：2010/05/18/
3.Number：200710027453.3　　　Date：2007/4/6