... Weight range from 0.5 to 8000kg Process sand casting,investment casting,machining Sand casting1.Material: gray iron, ductile ... Weight range from 0.5kg to 8000kg3.Process: sand casting,investment casting,machining4.Valve parts and components: valve body, disc ... , bearing housing, impeller, suction spool, discharge spool, stage casing, column adapter, driver collet, retainer bearing, bearing cap, head ...