J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Jiangsu aikang biomedical research and development co., LTD
Telephone025-66110311 13155353615
Websitehttp://www.aikonchem.com/
Shanghai Daken Advanced Materials Co.,Ltd
Telephone+86-371-66670886
Websitehttps://www.dakenchem.com/
Shanghai Qyubiotech Co., Ltd.
Telephone+86-086-021-37596619 +8618019359838
Websitehttp://www.qyubiotech.com/