J & K SCIENTIFIC LTD.
Telephone18210857532 18210857532
Websitehttps://www.jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Telephone4006356688 18621169109
Websitehttp://www.x-labseek.com/
Shanghai Hanhong Scientific Co.,Ltd.
Telephone021-54306202 13764082696
Websitehttps://www.hanhongsci.com
CR Corporation Limited
Telephone
Websitehttp://www.crcorporation.cn/
DONBOO AMINO ACID COMPANY
Telephone 13063595538
Websitehttp://www.donboo.com/
Shijiazhuang Ruitian Biochemical Co. Ltd
Telephone 15831127780
Websitehttps://www.rtsh.cn
Baoji Didu Pharmaceutical and Chemical Co., Ltd
Telephone029-81145305 17791533577
Website