J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Chemsky (shanghai) International Co.,Ltd
Telephone021-50135380
Websitehttp://www.shchemsky.com
Shanghai wencai New Material Technology Co., Ltd.
Telephone 15721586846
Websitehttp://wencai-nm.com/
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd
Telephone 15229059051
Websitehttp://www.dideu.cn