3A Chemicals
Telephone400-668-9898
Websitehttp://www.3achem.com
Zhengzhou Alpha Chemical Co. LTD
Telephone0371-0371-53732842 13383863444
Websitehttps://www.chemicalbook.com/supplier/23629674/
Shanghai Hanlin biology science and technology co., ltd
Telephone183-0212-4410 18302124410
Websitehttp://hanlinchemical.com/
Zhejiang Hongwu Technology Co., Ltd.
Telephone18255593606; 18255593606
Websitehttp://www.hwoled.com/
Jilin Chinese Academy of Sciences-yanshen Technology
Telephone 18143011203
Websitehttp://www.chemextension.com/