1 Name: Perforated Metal sheet 2 Type:perforated stainless steel,perforated mild steel, aluminum 3 ... holes sizes 0.5 to 20mm Detailed introduction to Perforated Metal:Material: Stainless steel, aluminum, hot and cold steel, copper, PVC ... the beautifully decorated plate of environmental protection; can be used for mechanical equipment, protective cover, ornate speaker mesh cover, food , feed mill ...