... filter Perforated Filter MeshMaterial: Stainless steel, aluminum, hot and cold steel, copper, PVC plate film materials.Hole shape: Long hole, square ... can be used for mechanical equipment, protective cover, ornate speaker mesh cover, food , feed mill screen used mine, mine ... a net, decoration fairs Taiwan, grain storage with breathable mesh ventilation.Specifications: 1. Coil thickness 0.2mm-1mm, ...