... CPVC,PVDF 2.diameter:16mm,25mm,38mm,50mm,76mm Plastic tower packing is made from heat resistant and ... in the packing towers in petroleum industry, chemical industry, alkali-Chloride industry, coal gas industry and environmental protection, etc. Physical & chemical properties of plastic ... 1.510076*76*2.6739219305876*76*2.673 plastic pall ring packing used in the packing towers in petroleum industry