... Galvanized Roofing Screw With Washer,roofing nails Roofing nails specifications: 1.MATERIAL: Q195, Q235 2.SIZE:65mm,75mm,90mm,120mm3.THICKNESS ... /MBWG3/89.52520250.80012/111/2 12.70020/19/182-1/263.49911/105/815.87519/18376.20010/83/419.05018 ... E.G or Polished,Sharp point.Mainly Processes of production:1.wire drawing:make the needed diameter of nails2.cold upsetting ...