... Aluminum die casting Material:carbon steel,stainless steel,,aluminum,etc. Surface treatment: sand blasting,polishing,zp Aluminum die casting ARTAluminum die castingMATERIALcarbon steel,stainless steel,,aluminum ... EACH ITEMCERTIFICTEISO9001:2000 Material:carbon steel,stainless steel,,aluminum,etc.Surface treatment: sand blasting,polishing,zinc ... sample to you for close inspection. Aluminum die casting