... .Material: ss304L,316L,carbon steel ,aluminum, bronze 2.Size:Dia16,25,38,50mm Metal Pall Ring Packing is well known packing ... available in a wide range of materials such as stainless steel ,carbon steel ,aluminum, bronze,304L,316L,and other alloy etc. ... %Bulk density kg/ m3No,per m3Packing factor m-1 Pall ringΦ 1616x16x0.423992.8365205000299Φ 2525x25x0.621993.442755900269Φ 3838x38x0.812994.536513000153Φ ...