... 2.diameter:16mm,25mm,38mm,50mm,76mm Plastic tower packing is made from heat resistant and chemical corrosion resistant plastics, ... (PVDF). It has features such as high free volume, low pressure drop, low mass-transfer unit height, high flooding point, uniform ... 60°Cto 150°C. For these reasons it is widely used in the packing towers in petroleum industry, chemical industry, alkali-Chloride industry, ...