... certificate: ISO9001:2000 Surface Treatment: polished, galvanize COMMON ROUND WIRE NAILSWe produce common wire nail, umbrella roofing nails, coil nail, building nails, ... trade manager orour certificate:1) Length: 3 / 8 "- 7"2) Shank diameter: 1.0-6 .5 mm3) Material: Q235 ... Bright, E.G, H.D.G6) Features: flat caps, round bar, diamond7) Usage: Industrial construction packing boxes8) Package: Bulk ...