... ISO9001 certification. Product introduction : Item Name Stainless steel wafer head drilling screws , decorative screws Material1.Stainless steel:303/304 ... Electroplate , Baking finish , Anodizing , OxidationOperationCNC machine , Lathe machine , Milling machine , Drilling machine , Planning , Grinding , Boring , Wire-electrode cutting ,and tappingQuality controlProfessional precision manufacture for ...