Hole plates are typically made by punching cold-rolled steel, hot-rolled steel, galvanized steel, aluminum, or stainless steel through specific molds on a punch press.
The main hole types of perforated plates include round holes, oval holes, elongated waist holes, square holes, rectangular holes, cross holes, diamond-shaped holes, hexagonal holes, triangular holes, pentagram holes, plum blossom holes, fish scale holes, patterned holes, irregular holes, bulging holes, and louvre holes, among other basic hole types.