J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Chemsky (shanghai) International Co.,Ltd
Telephone021-50135380
Websitehttp://www.shchemsky.com
CEG Chemical Science&Technology Co., Ltd.
TelephoneMobile:13665161512
Websitehttp://www.cegchemical.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Wuxi Donghe Pharmaceutical Technology Co., Ltd.
Telephone63313187 15358055255
Websitehttp://www.cegchemical.com