... ", 2", 3", 4" Application:Use as tower packing Size customized Metal pall ring has the features of thin wall, heat resistant, high ... 304, 304L, 410,316, 316L.Technical data of metal pall ring: Diameter (mm)Dimension d×h×δ (mm)Specific surface area (m2 ... ×1.8740.965501200370Φ100100×100×2.0350.955531200371 Metal pall ring (Dia.16, 25, 50, 76, 100mm)