Meryer (Shanghai) Chemical Technology Co., Ltd.
Telephone021-61259108 18621169109
Websitehttps://www.meryer.com/cn/index/
Dayang Chem (Hangzhou) Co.,Ltd.
Telephone571-88938639 +8617705817739
Websitehttps://www.dycnchem.com/
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd
Telephone 15229059051
Websitehttp://www.dideu.cn
Shanghai Saikerui Biotechnology Co. , Ltd.
Telephone021-58000709 13052382393
Websitehttp://www.scrbio.com/
Shanghai Beiwanta Biotechnology Co., Ltd.
Telephone021-67187366 19901745723
Websitehttp://www.bwtlab.com/