J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Chemsky(shanghai)International Co.,Ltd.
Telephone021-50135380
Websitehttp://www.shchemsky.com
Chongqing Xingcan Pharmaceutical Technology Co., Ltd.
Telephone 15523000485
Websitehttp://www.starrymed.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
career henan chemical co
Telephone+86-0371-86658258 +8613203830695
Websitehttp://www.coreychem.com