... stainless steel, Aluminum thickness:0.1-10mm perforated metal mesh:ISO 9001:2000meterial:carbon steel, stainless steel ... 0.3%-63%Process: punchUse: Filter part, metal filter panelHole: round, square, diamondCharacter: winding-resisting, Ageing-resistingThe finished: ... board, plastic film, etc. Hole shapes:Round, rectangular, square, triangle, hexagonal, diamond, lightly pull scale, cross, slotted ...