... .Aperture:min 0.6mm 2.Stainless 304,316,316L,low carbon,aluminnum 3.1M*2M,1.22M*2.44M, ... Steel, Stainless steel, Galvanized, Aluminum, Brass, Copper.Weave and feature: punching and etching , the thickness less than 0.5mm, need to ... , Screens, Ventilators etc .And can also be utilized for the purpose of protection and decoration. 2012 HOT !!! excellent quality and reasonable price Round Perforated Metal