... metal sheet characteristics :it is punched to mesh, including aluminum plate mesh,small steel mesh round hole perforated metal ... aluminum, aluminum-plastic, copper, nickel, titanium, PVC and other sheet materials.Opening pattern : Round, oval, square, rectangular hole, ... construction, electronics, transport, etc. Brief Information of Perforated Metal Hole Size: 0.1MM-100MM Thickness: 0.1MM-8. ...