1.Super precision Iron casting Parts 2.Material: grey iron,ductile iron casting 3. Sand casting , lost foam casting Bracket ductile iron Valve seat, reduction ... ductile Iron QT450-600,45#Steel2. Progress: Lost foam casting, and ressin sand casting . 3. Valve seat, reduction gear box ,bracke ... , 6. OEM, ODM, service support 7. We have high quality machine manufacture capacity, becuse we have 100 sets of ...