... GB, ANSI, API, DIN, BS, JIS Ductile Iron Casting Detail:1). Ductile iron casting machining part are smooth, well cleaned, free ... according to your samples or drawing.3). Material Available: Ductile iron QT450, ASTM A536 65-45.12, ASTM 8620, ASTM ... Method :Raw materials manufacturing, rust prevent, ting oil, spray paint, hot galvanization, cold galvanization or colored eletroplate, powder coating and ...