Beijing Eternalchem Co,. Ltd.
Telephone010-59484199 18611897322
Websitehttp://www.eternalchem.com/
ShangHai AmK Pharmaceutical Technology Co., Ltd.
Telephone 18019252918
Websitehttp://www.amkchem.com微信:17321281695
Win-Win chemical CO., Limited
Telephone+86-0086-577-64498589 +86-15355981851
Websitehttps://www.win-winchemical.com/
Shanghai Haohong Pharmaceutical Co., Ltd.
Telephone4008210725 4008210725
Websitehttps://www.leyan.com/
Henan Dowon Chemical Technology Co., Ltd.
Telephone 16696119288
Websitehttp://www.dowon.com.cn