... holes sizes 0.5 to 20mm Detailed introduction to Perforated Metal:Material: Stainless steel, aluminum, hot and cold steel, copper, ... ; can be used for mechanical equipment, protective cover, ornate speaker mesh cover, food , feed mill screen used mine, mine screening, ... with a net, decoration fairs Taiwan, grain storage with breathable mesh ventilation.Specifications: 1. Coil thickness 0.2mm-1mm, the ...