Shanghai Hanhong Scientific Co.,Ltd.
Telephone021-021-64543801 13764082696
Websitehttps://www.hanhongsci.com
Beijing HuaMeiHuLiBiological Chemical
Telephone010-56205725
Websitehttp://www.huabeibiochem.com/
DONBOO AMINO ACID COMPANY
Telephone +8613063595538
Websitehttp://www.donboo.com/
Baoji Didu Pharmaceutical and Chemical Co., Ltd
Telephone17691182729 15991417702
Websitehttps://www.dideu.com
