... 3.ISO9001:2008 4. OEM offerred 5. Cast iron parts OEM Precision ductile iron casting partProduct 's introduction:1. Material: Ductile ... iron parts (G3000, G3500, GG20, GG25, GG30, GG35, GGG40, GGG50 ... .4. Applications: oilfield equipment, pipelines, valves, heavy machinery and industrial tooling industries, etc5.Equipped with CNC machines, we can perform ...