Beijing HwrkChemical Technology Co., Ltd
Telephone89508211 18501085097
Websitehttp://www.hwrkchemical.com
Hefei Molybdenum Kai Pharmaceutical Technology Co., Ltd
Telephone18001872185; 18001872185
Websitehttp://www.yxjchem.com/
Shanghai alkynechem Co., Ltd.
Telephone086-021-15821262312 15821262312
Websitehttp://www.alkynechem.com
Shanghai Scibiotron Pharmaceutical Co., Ltd
Telephone+86-16621589600
Websitewww.scibiotron.com
SHANGHAI YOUNG-CHEM CHEMICAL CO., LTD.
Telephone 13817489192
Websitehttp://www.ychemchemical.com/