... ,stainless steel,,aluminum,etc. Surface treatment: sand blasting,polishing,zp Aluminum die casting ARTAluminum die castingMATERIALcarbon steel,stainless steel,,aluminum,etc.SURFACEsand blasting,polishing,zinc ... EACH ITEMCERTIFICTEISO9001:2000 Material:carbon steel,stainless steel,,aluminum,etc.Surface treatment: sand blasting,polishing,zinc plated,chromeplate,blackening etcEquipments:CNC engine ...