... random packing (cascade ring, pall ring, conjugate ring, intalox ring, flat ring, rasching ball, VSP ring) with competitive price is your ... -transfer unit height, high flooding point, uniform gas-liquid contact, small specific gravity, high mass transfer efficiency and so on, and ... , Pall ring, Raschig Ring, Conjugate ring, VSP ring, Intalox Saddle, Flat ring)