J & K SCIENTIFIC LTD.
Telephone18210857532 18210857532
Websitehttps://www.jkchemical.com
Chemsky（shanghai）International Co.,Ltd.
Telephone021-50135380
Websitehttp://www.shchemsky.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226
Websitehttps://www.rrkchem.com
nanjing dingda Pharmatech. co. ltd
Telephone18013843276
Websitehttps://www.dingdapharmatech.com
Shaanxi wopin Chemical Technology Co., Ltd
Telephone 18792798662
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1991768/0_EN.htm
Nanjing webright Pharmaceutical Technology Co., Ltd
Telephone18066048793; 18014498793
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1493865/0_EN.htm
Changzhou Hongda New Material Technology Co., Ltd.
Telephone 15262235181
Website
Ningbo Chaoming Biotechnology Co., Ltd
Telephone 13301662590
Website
LGC Science (Shanghai) Ltd.
Telephone17717235263 17717235263
Websitehttps://www.lgcstandards.com/CN/en/
