1.material s:galvanized plates,cold plates,stainless steel plates 2.firtration ,classification,sound insulation 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 netttings,etc.Uses:On the firtration of auto gas engine;the classification and ...