Metal Cascade Ring Material:SS304,304L,410,316,316L ISO9001:2000 Metal Cascade RingMetal Cascade Mini Ring is made by materials like carbonsteel,stainless steel or ... thermosensitive,decomposable,polymerizable or cokable systems,for these,Pingxiang Petrochemical metal tower packing is widely used in packing towers in ... steel,stainless steel including 304,304L,410,316,316L Metal Cascade Mini Ring