ss perforated mesh 1.galvanized plate,cold plates,etc 2.high quality and fast dilivery 3.ISO 9001:2001 materials:galvanized plates,cold plates,stainless steel plates,aluminium plates,aluminium magnesium alloy plates,etc. hole shapes:long holes,round holes,triangle holes,lightly pull scale holes,other pull wire nettings.etc. uses:on the filtration of auto gas engine;the classification and filtration of mine,medicine,cereals and grains;indoor sound insulation ventilation of grain depot,etc