Henan's chemical products co., LTD
Telephone0371-60919097 15378766539;
Websitehttp://www.psaichem.cn/
Henan Lien Chemical Products Co., Ltd.
Telephone0371-63357898 15378766539
Websitehttp://www.psaichem.com/
Shanghai Haohong Pharmaceutical Co., Ltd.
Telephone400-8210725 4008210725
Websitehttps://www.leyan.com/
Jilin Chinese Academy of Sciences-yanshen Technology
Telephone 18143011203
Websitehttp://www.chemextension.com/
Suzhou Zhuyanke Biopharmaceutical Co., Ltd.
Telephone15190025787 18550797660
Website