... random packing (cascade ring, pall ring, conjugate ring, intalox ring, flat ring, rasching ball, VSP ring) with competitive price ... 1) Geometric characteristic data of PP Pall Ring PackingTypeSpecificationSpecific AreaVoid RationNumberBulk DensityDry Packing FactorD×H×δαε ... 19)HQB ring(20)Polyhedral ball Plastic random packing (Cascade ring, Pall ring, Raschig Ring, Conjugate ring, VSP ring, Intalox ...