Metal Pall Ring--Tower packing Material:SS304,304L,410,316,316L ISO9001:2000 Metal Pall Ring--Tower packingMetal Pall Ring is made of materials like carbonsteel, ... or cokable systems,for these,Pingxiang Petrochemical metal tower packing is widely used in packing towers in petrochemical industry,chemical fertilizer industry and ... steel including 304,304L,410,316,316L Metal Pall Rings--Tower packing