... Perforated hole mesh, Perforated metal mesh,perforated sheet,Perforated mesh, Perforated, Perforated wire mesh, perforated metal, perforated steel,Perforated sheet metal, perforated screen ... railway and subway come through the city. It can also be used in building wall power ... length and the thickness · material · surface treat : galvanzed or not , PE or PVC , many colors . · unique requirements · ...