Chengdu Pukang Biotechnology Co., Ltd
Telephone 18217049878
Websitehttp://www.peglinke.com
shanghai Yanfeng biochemical technology Co.,LTD
Telephone17721070236 13611955358
Websitehttp://www.yanfenbio.com/
Shandong fen Boyu Biotechnology Co.,LTD
Telephone13356310019 13356310019;
Websitehttps://www.chemicalbook.com/supplier/25479786/
Chengdu Hanwei Biotechnology Co., Ltd
Telephone17360178904 18217049878
Websitehttp://www.pegtide.com
Henan Mengtai Pharmaceutical Technology Co., Ltd
Telephone17634413542
Websitehttps://www.mengtaichem.com