... 8000kg Process sand casting,investment casting,machining Sand casting1.Material: gray iron, ductile iron, steel, bronze2.Weight range from 0.5kg to 8000kg3.Process: sand casting,investment casting,machining4 ... gear...5.Pump parts and components: pump body, bearing housing, impeller, suction spool, discharge spool, stage casing, column adapter, driver collet ...