... Plywood cases,etc 5.Sand casting parts OEM service parts/investment casting/sand casting/ CNC machining DescriptionCNC machining ... ,GB,AISI,DIN,etcSurface TreatmentZinc,heat-treatment,powder,nickel,chrome,sliver,polishing,T4,T6,etcEquipmentsPressing machine ... plating, according to customer's requirements.chrome plating, powder coating. Gavalnizing, polishing, painting, etc Machining machining center ...