... PVDF 2.diameter:16mm,25mm,38mm,50mm,76mm Plastic tower packing is made from heat resistant and chemical corrosion resistant ... unit height, high flooding point, uniform gas-liquid contact, small specific gravity, high mass transfer efficiency and so on, and ... 150°C. For these reasons it is widely used in the packing towers in petroleum industry, chemical industry, alkali-Chloride industry, coal ...