天堂网日本手机版_无码人妻丰满熟妇啪啪网站_日韩久久精品一区二区_国产欧美亚洲精品第1页_亚洲国产中文在线二区三区免_亚洲精品一区二区国产精华液,饥渴的岳中文字幕_黄色电影一级免费看_日韩亚州国产成人综合_中文字幕无线码成人免费看_欧美老熟妇又粗又大_国产精品白丝久久AV网站 ,欧美高清黄片永久免费_极品美女国产黄色AV脱衣_精品人妻系列无码一区二区三区_精品主播福利网一区二区三区_2022国产精品自拍_国产不卡视频一区二区在线观看 ,夜夜添无码试看一区二区三区_越南高清无码综合_无码AV免费永久免费永久专区_亚洲AV成人无码影视网_97碰碰碰人妻视频无码_亚洲精品无码专区在线观看

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.