... , etc perforated metal Name: Perforated Metal, Perforated Sheet, Hole punching Metal, Hole punching sheet Tickness of plate: 0.1mm- 25mm Material ... : Galvanized Perforated, Aluminum sheet, Nickel Sheet, Copper sheet Hole shape: Round, square, slot, hexagonal, diamond, triangle, etc. ... 2. The tickness of the plate 3. The hole shape 4. The hole size 5. Pitch ( the distance between two ...