J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Chemsky(shanghai)International Co.,Ltd.
Telephone021-50135380
Websitehttp://www.shchemsky.com
S.Z. PhyStandard Bio-Tech. Co., Ltd.
Telephone0755-83725681-603
Websitehttp://www.phystandard.com.cn
ChemStrong Scientific Co.,Ltd
Telephone0755-66853366 15920483169
Websitehttp://www.chem-strong.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 13028896684
Websitehttps://www.rrkchem.com
QUALITY CONTROL SOLUTIONS LTD.
Telephone 15920483169
Websitehttps://www.qcsrm.com
Gongyishengan Technology (Shenzhen) Co., Ltd.
Telephone+86-0755-89218110 +86-13480856786
Websitehttp://www.n-jz.com/
Tan-Mo Technology Co., Ltd.
Telephone 19850211281
Website