Perforated metal mesh Expanded metal mesh's hole shape: Length hole, square hole, round hole,and so on, used in fencing Perforated metal meshMaterial: Low-carbon steel plate, aluminum sheet, stainless ... alloy board, galvanized iron sheet, copper plate, nickel board.Expanded metal mesh's hole shape: Length hole, square hole, round hole, hexagonal hole, scale hole, tension heterotypic hole, etc.Using ...