无码h视频在线观看无_影色先锋av男人资源_亚洲熟妇无码av_大鸡巴黄色视频

Owing to the professional R&D team and strong technical strength, the "Continuous oxidation method to produce TMA" researched and developed independently by Zhengdan Chem was granted the 12th China Patent Excellence Award, the Third Prize of Jiangsu Science and Technology Award, the Second Prize for Progress in Scientific and Collective Technology of ACFIC. The mass production technology of Vinyl Toluene has filled the domestic gap and it is mastered by few companies worldwide. Zhengdan Chem is recognized as a Hi-tech Enterprise of Jiangsu province, Key R&D Organization of Jiangsu province, Privately Owned Sci-tech Enterprise of Jiangsu province, Postdoctoral Innovation and Practice Base of Jiangsu province, Engineering Research Center of Jiangsu province for High-performance Three-Agent Chemical Material, Demonstrative Enterprise of Intellectual Property Management Standardization in Jiangsu Province and has obtained more then 20 invention patents and utility model patents.