We are committed to providing our customers with the best products and services at the most competitive prices.Appearance:crystalline powder Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use as pri

YUYONGMEI was established in Aug,1999, located in the industrial park of Nanjing University of Technology, It is a private enterprises in Jiangsu Province with 1200 square meters’ R&D center. Our R&D center has a well-equipped synthetic laboratory a