... of nonmetal plates.Surface treatment: Anodizing,powder coating Hole Patterns including: Round; Rectangular hole; Square; Triangle; Diamond; Hexagonal; Cross; Slotted ... , 4. Width x Length of flat sheet 1X2m. 5. Diameter:0.3mm-30mm Processing: perforating, flattening, rolling, cutting, bending ... from 0.3mm-8mm. 5. Largest selection of hole size patterns and configurations 6. Uniform sound abatement, 7 ...