1.Super precision Iron casting Parts 2.Material: grey iron,ductile iron casting 3. Sand casting , lost foam casting Bracket ductile iron Valve seat, ... ductile Iron QT450-600,45#Steel2. Progress: Lost foam casting, and ressin sand casting . 3. Valve seat, reduction gear box ,bracke ... : 15-20days according to quantity and customers required, 6. OEM, ODM, service support 7. We have high quality machine ...