+ISO9001:2008 CE RoHS for Die cast hardware parts in high quality +Provide OEM service +Flexible MOQ:20pcs +mearly 10 years ... sink clear anodizing, oxidation process, powder coating, brushing, sandblasting,shot blasting,polishing,milling 3 Surface color: natrual ,black,matt black ... 6.Structure: 9-curved model steel, welded by the high quality professional 3-ways-connected structure.7.IP55,IP56,IP65, ...