J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Amadis Chemical Company Limited
Telephone571-89925085
Websitehttp://www.amadischem.com
Wuhan graphe Pharmaceutical Technology Co., Ltd.
Telephone 18995639250
Websitehttp://www.graphe-tech.com/
Yujinpharma(Tianjin) Technology Co.,Ltd.
Telephone13370351217 kungfu1217@1
Websitehttp://www.yujinpharma.com
Guangdong Shengke Biochemical Technology Co., Ltd.
Telephone189-25112307 18925113981
Websitehttps://www.sk-chem.cn