... 1.4-70 perforated metal :Materials: stainless steel mesh, aluminum, copper, steel board, PVC filmType: long ... porous plate, simple perforation plate, horn, speakers, mesh, filtering, and its shape stamping composition design, and ... carbon steel, stainless steel by plate, aluminum, copper, plastic, wood. Weave characteristics: stamping, According to the hole ... .67% square hole perforated wire mesh