... 1.5", 2", 3", 4" Use as tower packing Metal pall ring:Carbon Steel pall ring, CS pall ring, ... SS316 pall ring, SS316L pall ring, SS410 pall ring.Metal pall ring has the features of thin wall, heat ... including 304, 304L, 410,316, 316L.Technical data of metal pall ring: Diameter (mm)Dimension d×h×δ (mm)Specific ... 1.8740.965501200370Φ100100×100×2.0350.955531200371 Metal pall ring (16, 25, 38, 50, 76, 100mm)