Zhengzhou Huiju Chemical Co., Ltd.
Telephone0371-55900031 18137872243
Websitehttps://www.chemicalbook.com/supplier/11124122/
Bejing Famous Pharmaceutical Technology Co., Ltd.
Telephone010-80339217; 13331045123
Websitehttp://www.peking-pharmacy.com
Henan Lien Chemical Products Co., Ltd.
Telephone0371-63357898 15378766539
Websitehttp://www.psaichem.com/
Jilin Chinese Academy of Sciences-yanshen Technology
Telephone 18143011203
Websitehttp://www.chemextension.com/
Jilin Chinese Academy of Sciences-yanshen Technology
Telephone 18143011203
Websitehttp://www.chemextension.com/