... BWG6-16 Material : Q215 Carbon steel Gaomi Hualong Hardware Industrial Ltd., located in Shandong peninsula, 70km away from Qingdao ... each kind of architectural hardwares including barbed roofing nail,wire nail,steel nail,iron hinges,bolts, knob and other metal ... factories which produce common wire nail, umbrella roofing nails, coil nail, building nails, screw nail, concrete nail, also we can supply ...