... Weight range from 0.5kg to 8000kg3.Process: sand casting,investment casting,machining4.Valve parts and components: valve body, disc ... , impeller, suction spool, discharge spool, stage casing, column adapter, driver collet, retainer bearing, bearing cap, head hub, gear ... , couplingOur advantages: 1. 8000 tons of machined castings annually2. 4000 types of parts for different industries3.15 years' ...