亚洲AV永久无码国产精品久久,国产免费一区二区视频,午夜视频在线在免费,国产精品一区二区久久精品

CN1688
About Yuanxiang
- -
Scientific research strength

In 2009, the company set up a research and development center. After years of accumulation of technology research and development, the company has established a technology research and development team with rich experience and reasonable professional structure. responsible for product and technology research and development.


The R&D institution has been successively identified as the Engineering Technology Research Center of Fujian Nano-Silica Application Enterprise, Fujian Enterprise Technology Center, and Nano-Silicon Carbon Material Engineering Technology Center.