... Steel; Copper Hole Patterns : Round; Rectangular hole; Square; etc perforated metal mesh1 Materials: Materials: Low Carbon Steel Plate, Stainless ... high-grade sound box, decoration, the seating for children, baskets, etc.4 Features: also named Punched Mesh, It can ... can be round, square, triangle, diamond, hexagonal, cross, etc.5 Hole Patterns including: Round; Rectangular hole; Square; Triangle; ...