Micro mesh expanded metal Material: fine metal sheets ( mainly stainless steel, aluminum, brass and titanium) Hole shape: in diamond pattern. Hole size: 0.2mm to 30mm Feature :Metal micron mesh foils have smooth flat sheet surface and finer dimensions of the mesh openings. The metal sheet has a thin thickness. Application: mainly used as Auto Air Filtration Sheets, Acoustic Screening Panels, Shielding and masks for radios and record players, aesthetic paneling and decorations.