... nail&screw,including drywall screw, chipboard screw, self tapping/drilling screw, common nail, concrete nail, duplex nail, finishing nail, roofing nail with umbrella head, roofing nail with flat head, boat nail, coil common nail ... Our factory can produce the screw nails according to German Standard, American Standard, ... plating,Our products have been exported to England,German,America,Middle East, ...