... plastic pall ring,pall ring, plastic pall ring, pp pall ring, plastic tower packing, plastic random packing, cpvc pall ring , Plastic Pall Ring Tower ... height, high flooding point, uniform gas-liquid contact, small specific gravity, high mass transfer efficiency and so on. ... m3Void space%Bulk densitykg/m3No.elementsper/m3Packing factorm-1Pall ringø2525*25*1.2213918548300285ø38 38*38*1. ...