... 3", 4" Application: Vacuum rectifying towers Various sizes Metal Pall Ring has the features of High loading and throughput, low pressure ... transfer efficiency, Versatility, Easily wettable, High resistance to fouling, High Mechanical Strength , High resistance to temperature, lesser probability of breakage, suitable ... ×1.8740.9655012003704 "100×100×2.0350.955531200371 Metal pall ring for oil industry