Zhengzhou Alfachem Co., Ltd.
Telephone0371-0371-53315787 13333829863
Websitehttp://www.alfachem.cn
Henan Pusai Chemical Products Co., Ltd.
Telephone0371-63357898
Websitehttp://www.psaichem.com
Zhengzhou Edward Biology Co.,Ltd
Telephone0371-63682289 15538176268
Websitehttp://www.edwardbiology.cn/
Anqing Donghe Biotechnology Co., Ltd
Telephone 15056029383
Websitehttps://www.aqdonghe.com/
Henan Dowon Chemical Technology Co., Ltd.
Telephone 16696119288
Websitehttp://www.dowon.com.cn
Nanchang Chouhechem Pharmatech Co., Ltd.
Telephone 18178918509
Websitehttp://www.chouhepharm.com/
Jilin Chinese Academy of Sciences-yanshen Technology
Telephone 18143011203
Websitehttp://www.chemextension.com/
