... 1 galvanized punching net 2 Round hole,square hole,slot hole 3 Thickness:0.2 to 20 mm small hole expanded metal mesh Materials: Aluminum ... , Stainless Steel, Cold Rolled Steel, Hot Rolled Steel, Hot Dipped Galvanized, Electrogalvanized and Brass.Hole ... can be done according to the requests of the customers small hole expanded metal mesh