16欧美亚洲国产成人精品_精品日本少妇免费_中文+日韩+欧美电影_亚洲黄色av天堂_中文字幕女人妻一区二区99_单人版可插可脱身服全去掉的游戏_日本大乳毛片免费观看_fulao2官方下载国内载点网址_欧美亚洲一二三区不卡五月天_白洁被邻居灌满精H高清视频

Kemai ranks among the top 100 rubber industries in China. It has always been committed to infusing innovative technology into the rubber industry, making rubber more valuable and surpassing the global level of the rubber industry.

The chemical physical testing laboratory of Kemai has been accredited by CNAS, and the test result has been recognized by 92 countries and relevant international organizations across the world. Kemai’s quality level remains advanced for the industry.

Rubber additives has been the key supporting area of the country. Kemai, has developed its own innovations, and is transforming science and technology into productivity. It has built a demonstration base for high-tech industrialization, and is leading the industry’s technological development.

As an expert unit of the International Standardization Working Group and a member unit of the Sub-committee of National Rubber additive Commission, Kemai has exclusively drafted 5 national and industrial standards, participated in the drafting of 4 standards, and has become an important review unit for national standards in the additive industry.