Shanghai Haohong Pharmaceutical Co., Ltd.
Telephone400-8210725 4008210725
Websitehttps://www.leyan.com/
Shandong Dayou Pharmaceutical Research and Development Co., Ltd.
Telephonedayouchem@126.com 15165037910
Website
Shanghai alkynechem Co., Ltd.
Telephone086-021-15821262312 15821262312
Websitehttp://www.alkynechem.com
Shanghai Kangenbo Medical Technology Co., Ltd.
Telephone400-1388-521 17510465506
Websitehttp://www.kxychem.com/
SHANGHAI YOUNG-CHEM CHEMICAL CO., LTD.
Telephone 13817489192
Websitehttp://www.ychemchemical.com/