Hebei Chengxin Co., Ltd was founded in 1990, and now it is a private company and specialty chemical manufacturer with R&D, production and sales. The main products include 100 varieties such as sodium cyanide, potassium cyanide, sodium ferrocyanide, potassium ferrocyanide, benzyl cyanide, phenylacetic acid, cyanoacetate esters, malonate esters, orthofomates, cyanuric chloride, cyanoacetamide, DBNPA, ADMP, malonic acid, EDTA, EDTA-2Na, EDTA-4Na, GLDA-4Na, MGDA-3Na, etc.