Plastic Pall Rings 1.20 years professional manufacture 2.ISO9001:2008 ... PE,RPP,PVC,RPVC,PVDF 16,25,38,50,76mm Plastic Pall RingMaterials heat resistant and chemical corrosion resistant plastics, including ... 7.0>6.0>8.0>10.0Technical data for Plastic Pall Ring SizesmmSurfacem2/m3Free Vol.%Numberper m3Weightkg/ m3SizesmmSurfacem2/m316*16* ... .6739219305876*76*2.673 16,25,38,50,76mm Plastic Pall Ring