Shanghai Nafu Biotechnology Co., Ltd.
Telephone021-58952328 13125124762
Websitehttp://www.nayuansu.com
Guangdong Wengjiang Chemical Reagent Co., Ltd.
Telephone0751-2886766 13927870850
Websitehttp://www.wj-chem.com
Henan Weitesi Chemical Technology Co. LTD
Telephone0371-55135753 18003832934
Website
Guangdong Fangxin Biotechnology Co., Ltd.
Telephone0751-2838688 13376594225
Websitehttps://www.fx1668.com/
Guangdong Yuanfeng Chemical Reagent Co., Ltd
Telephone0751-2829979 13318584237
Websitehttp://www.yuanfenghx.com/
