J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Changzhou Hopschain Chemical Co.,Ltd.
Telephone0519-85528066 13775048983
Websitehttp://www.hopschem.com/
Beijing Minruida Technology Co., Ltd.
Telephone010-82387566 18001021521;
Websitehttp://www.mreda.com.cn/
Shanghai Amico Chemicals Co. LTD
Telephone 18019252918
Websitehttp://www.amkchem.com 微信:17321281695
Shanghai Haohong Pharmaceutical Co., Ltd.
Telephone400-400-8210725 4008210725
Websitehttps://www.leyan.com/