J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Syntechem Co.,Ltd
Telephone
Websitehttp://www.syntechem.com/
Shanghai JingSi Biological Technology Co., Ltd
Telephone18221840760
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList19882/0.htm
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Shanghai Haohong Pharmaceutical Co., Ltd.
Telephone4008210725 4008210725
Websitehttps://www.leyan.com/