... can provide the following materials for perforating:Stainless Steel, Galvanized Steel, Carbon Steel, Aluminum, and all types of ... available. 3.Perforated metal mesh hole shapeRound, square, long round, triangle, scale, diamond, oval, hexangular, slot etc. ... readily formed, easily installed, painted or polished and electro galvanized, largest selections of the hole shapes and configurations, uniform ...