Metal Cascade Ring 1.Material:carbon steel, ss304, 304 L, 410, 316, 316 L 2.Size:dia25,38,50mm 3.used in desulphurization ... , 304 L, 410, 316, 316 L, etc. to choose from.Application:ammonia decarbonization, desulfurization systems, atmospheric and vacuum distillation of crude oil separation unit ...