... 304,410,316,Al,gl sheet Aperture:.5-500mm wire dia:0.5-10mm Use: filter, chair,machine ... , PVC and other sheet materials.2. Hole Patterns :The holes of perforated hole mesh is Round , Rectangular hole , Square , Triangle , Diamond , Hexagonal ... , welding, shaping and surface treatment. 4.Characteristics:Our perforated hole mesh owns smooth surface, beautiful shape, extensive usage, readily formed, ...