Hangzhou Sage Chemical Co., Ltd.
Telephone+86057186818502 13588463833
Websitehttp://www.sagechem.com/
Shanghai wencai New Material Technology Co., Ltd.
Telephone 15721586846
Websitehttp://wencai-nm.com/
Jiangsu aikang biomedical research and development co., LTD
Telephone025-58859352 17714375163
Websitehttp://www.aikonchem.com/
Hubei YoungXin Pharmaceutical Tech Co.,Ltd.
Telephone0714-3999001 19171453112
Websitehttp://www.yongstandards.com/
Guangzhou CATO Research Chemicals Inc.
Telephone+86-020-81960175-617 18520203721
Websitehttps://www.cato-chem.com/