J & K SCIENTIFIC LTD.
Telephone18210857532 18210857532
Websitehttps://www.jkchemical.com
Shanghai Nafu Biotechnology Co., Ltd.
Telephone021-58952328 13125124762
Websitehttp://www.nayuansu.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 13028896684;
Websitehttps://www.rrkchem.com
Henan Weitesi Chemical Technology Co. LTD
Telephone0371-55135753 18003832934
Website
TIANJING WELCOME SCIENCE AND TECHMOLOGY DEVELOPMENT CO,LTD.
Telephone 18526832783
Websitehttp://welcomepeg.com/
