Metal pall ring Material: Carbon Steel, Stainless steel Size: 16, 25, 38, 50, 76, ... as tower packing Metal pall ring:Carbon Steel pall ring, CS pall ring, Carbon Steel pall ring, Stainless steel pall ring ... .955531200371 16, 25, 38, 50, 76, 100mm Metal pall ring (Material: Carbon Steel, Stainless steel 304, 304L, 316, 316L, 410)