Material: Carbon Steel, Stainless steel 304, 304L, 316, 316L, 410 Size:16, 25, 50, 76, ... , Desorption, Distillation, Stripping, Heat Recovery, Extraction.Material available: Carbon steel, stainless steel including 304, 304L, 410,316, 316L.Technical data of metal ... Metal pall ring (Dia.5/8", 1", 1.5", 2", 3", 4")