Sigma-Aldrich
Telephone021-61415566 800-8193336
Websitehttps://www.sigmaaldrich.cn
Guangzhou Tomums Life Science Co., Ltd.
Telephone020-31155029 18902330969
Websitehttp://www.tomums.cn/
Shanghai Acmec Biochemical Technology Co., Ltd.
Telephone +undefined18621343501
Websitehttp://www.acmec.com.cn/