... perforated screen mesh. A wide range of perforated metal screen sheets with the most complicated and beautiful designs for ... , sifting of grains, decorations and designs of buildings. Perforated Metal hole shape: Round, Square, Long round, Triangle, Diamond, ... material: Stainless Steel, Carbon Steel, Galvanized, Aluminum. Perforated Metal Specification:Opening (mm)Center type(mm)Thickness of sheet ...