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