Tianjin heowns Biochemical Technology Co., Ltd.
Telephone400-6387771-6039 18920764717
Websitehttp://www.heowns.com
Guangdong wengjiang Chemical Reagent Co., Ltd.
Telephone0751-2815987 13927875076
Websitehttp://www.wj-chem.com
Changzhou Extraordinary Pharmatech co., LTD.
Telephone0519-82111935 15195055733
Websitehttp://www.feifanchem.com
Guangdong Yuanfeng Chemical Reagent Co., Ltd
Telephone0751-2829979 13376591640
Websitehttp://www.yuanfenghx.com/
LGC Science (Shanghai) Ltd.
Telephone17717235263 17717235263
Websitehttps://www.lgcstandards.com/CN/en/