copper screw 1. Delivery time:7days 2.OEM,manufacturer 3.ISO9001:2008, ... plated,black.StandardISO,GB,DIN,JIS,ANSICetificateISO9001-2008,SGS,ROHSFunctionAatomobile,electronic,mechineryPackageSuitable for sea and air transportation or as required After ... are at your service in 24 hours.Skype: szjbsy888 copper screw