J & K SCIENTIFIC LTD.
Telephone18210857532 18210857532
Websitehttps://www.jkchemical.com
SynAsst Chemical.
Telephone021-60343070
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList15848/0_EN.htm
Yancheng KangdiSen Pharmaceutical Co., Ltd.
Telephone 13812573443;18052965989
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList19142/0_EN.htm
Henan Aosman Biotechnology Co., LTD
Telephone13761588971 17719817155
Websitehttp://www.osmanbio.com/contact.html
Changzhou Yourui Pharmaceutical Technology Co., Ltd
Telephone18168818882
Websitehttps://www.youruipharm.com