... ,ISO9001:2008 Certificate Specifications1.Material:ductile cast iron 2.Process:sand casting 3.3D design ... partsMaterial: the parts showed are made up of ductile iron,anyway,we can do any metal parts ... ,such as stainless steel,steel,iron,aluminum,brass by investment casting,die casting ... complete facilities, such as the production line of investment casting introduced from Taiwan and spectrum ...