copper screw 1. Delivery time:7days 2.OEM,manufacturer 3. ... zinc plated etc.2.Variety of standards:ISO,GB,DIN,JIS,ANSI3.We have passed ISO9001-2008,SGS,ROHS certificate ... blue plated, white plated, yellow plated,black.StandardISO,GB,DIN,JIS,ANSICetificateISO9001-2008,SGS,ROHSFunctionAatomobile,electronic,mechineryPackageSuitable for sea and ... your service in 24 hours.Skype: szjbsy888 copper screw