Hangzhou J&H Chemical Co., Ltd.
Telephone0571-+86-571-87396432
Websitehttp://www.jhechem.com
Zhejiang Hongwu Technology Co., Ltd.
Telephone18255593606; 18255593606
Websitehttp://www.hwoled.com/
Zhengzhou HQ Material Co., Ltd.
Telephone0371-67759225 13526468238
Websitehttp://www.hqmat.com/
