... packing Metal pall ring has the features of thin wall, heat resistant, high free volume, high capacity, ... , 316L.Technical data of metal pall ring: Diameter (Inch)Dimension d×h×δ (mm)Specific surface area (m2/ ... )Heaping number (n/m3)Heaping weight (kg/m3)5/8 "16×16×0.33620.9494232140003965/8 "16×16 ... 100×1.8740.9655012003704 "100×100×2.0350.955531200371 Metal pall ring (Dia.5/8", 1", 1.5", 2", 3", 4")