... S.S,Aluminum,Plain Steel,Brass plate Perforated Metal Perforated metal has many applications, including particle separation, ventilation, ... , virtually every industry needs perforated metal. Compared to wire mesh, perforated metal has a greater, more predictable, ... such as Round, Rectangular, Square, Triangle, Diamond, Hexagonal, Cross, Slotted, and many other decorative patterns) and materials (such ...