J & K SCIENTIFIC LTD.
Telephone18210857532 18210857532
Websitehttps://www.jkchemical.com
Shandong utilizing biological technology co., LTD
Telephone15318761660 15966937598
Websitehttps://www.demaichem.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 13028896684;
Websitehttps://www.rrkchem.com
Jinan Demai Medical Technology Co., LTD
Telephone18669728830 15806766175
Websitehttps://www.demaichem.com/
Shijiazhuang Yansheng Biotechnology Co., LTD
Telephone18332018567; 18332018567
Website