... low mass-transfer unit height, high flooding point, uniform gas-liquid contact, small specific gravity, high mass transfer efficiency ... towers in petroleum industry, chemical industry, alkali-Chloride industry, coal gas industry and environmental protection, etc. Technical data: D*H* ... 5132.591175.850*25*1.51074054.8114.292.7143.176*37*3342068.49092.9112.3 plastic ceacade ring for coal gas industry