... valve disc,stainless steel discs,fully machined pump componentManufacturing Process:precision casting,etcMachining:turning,milling,grinding,machineryFinishing:blasting,polishing,electro-polishing 1MaterialDuctile ... ,Grey cast iron,stainless steel/CF8M3MachineLathe,CNC,Drilling machine,Milling machine,Boring machine,Planing machine 4ProcessPrecision Casting 5Min Tolerance0.05mm 6Productioncapacity0.5 ...