perforated strip with different lenght and panited with different colour size:12*0.5,17*0.8,25*1 Perforated strip Materials: pre-galvanized steel, thickness 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm Surface finish: zinc-plated, H.D.G., powder-coated Application: apply a safety factor when calculate loading . Type:Wave. Length:5-25m Width:12mm.17mm.25mm. perforated strip