16mm 25mm 38mm 50mm PP PE PVC RPP materials plastic raschig ring as mass transfer packing Technical Parameter: Model Rasching Ring Material PP,RPP,PE,PVC,CPVC,PVDF, etc. Size mm 15*15*0.3 25*25*0.3 38*38*0.4 50*50*0.5 80*80*0.8 Specification of PP raschig ring Bulk density kg/m3 385 231 207 200 200 Number per m3 2…