J & K SCIENTIFIC LTD.
Telephone18210857532 18210857532
Websitehttps://www.jkchemical.com
Sichuan Guanghan Bio-Tech Co., Ltd
Telephone+86-28-86127071
Websitehttp://www.sino-produce.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
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226
Websitehttps://www.rrkchem.com
Dideu Industries Group Limited
Telephone +8617392712697
Websitehttps://www.dideu.com
Langfang Qianyao Technology Co.,Ltd
Telephone0316-2132008 19932680339
Websitehttps://www.chemicalbook.com
Energy Chemical
Telephone021-58432009 400-005-6266
Websitehttp://www.energy-chemical.com
Olix ( Hubei) Pharmaceutical Technology Co., Ltd
Telephone17316404525 17316404525
Websitehttps://www.olix.cn
LGC Science (Shanghai) Ltd.
Telephone17717235263 17717235263
Websitehttps://www.lgcstandards.com/CN/en/