HeBei Do First Group is a professional enterprise major in producing chemical and ***** in 1985, it owns one hundred million RMB assets and has more than one thousand employees. HeBei Do First Group is the biggest exporter of chemicals and hardware in the North of China. HeBei Do First Group comprises Hebei Do First International Business & Trade Co., Ltd, HeBei HengTai Chemical Co., Ltd, WuYi Welding Material Co., Ltd, Our main products include Cyanuric Acid, Ammonium Sulphate, Welding Wire and Hardware. HeBei Do First Group has approved ISO ***** is in good sale in the region of Europe, Middle East, South Africa and the countries of America, Russia, Japan, Korea, Singapore , ***** has won trust from customers.