... pall ring ,pall ring,pall rings,used as tower packing , random packing , coloumm packing , Ceramic Pall Ring :Liquid and Gas Freely ... Ceramic Pall Ring is some kind of random packing ,has superior acid and heat resistance,and can ... to applied to the drying tower,absorbing tower,cooling tower, desulphurization towers ,rectifying tower,washing tower and regenerative tower in petro-chemistry,chemical ...