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