... drop, low mass-transfer unit height, high flooding point, and so on. PXZT is specialized in manufacturing ... cascade ring, pall ring, conjugate ring, intalox ring, flat ring, rasching ball, VSP ring) with competitive price ... drop, low mass-transfer unit height, high flooding point, uniform gas-liquid contact, small specific gravity, high ... Ring, Conjugate ring, VSP ring, Intalox Saddle, Flat ring)