色综合合久久天天给综看,天天干天天在线,日本免费大黄在线观看,天天干影院,性感黑丝美女视频,美女视频在线看网址,超高清美女视频

  Chengdu chaungkecheng biological technology co., ltd.
   About us
       About us
       Products
       Buy
       Sell
       Contact us
       Chinese

Chengdu Chaungkecheng Biological Technology Co., Ltd.is located in Chengdu hi tech Development Zone, is a collection research and development, production, sales in one integrated high-tech enterprise. The company by a number of years engaged in amino acid and its derivatives, ribose, pharmaceutical intermediates research and production professionals together to form. Products covered by non natural amino acids, amino acids, amino acid protective agent, amino acid chiral resolving agent, bio pharmaceutical intermediates, pharmaceutical raw materials and other fine chemicals and other seven categories over 1000 varieties, can provide from grams of biological pharmaceutical intermediates to tonnage and fine chemicals for global customers. We also can according to the special requirements of customers, to provide customized processing, synthetic process, technical consulting service for customers, to meet the various needs of customers.

Shanghai Danfan Network Science&Technology Co., Ltd. All Rights Reserved.