Metal Cascade Ring 1.Material:carbon steel, ss304, 304 L, 410, 316, 316 L 2.Size:dia25,38,50mm 3.used in desulphurization Metal ... of rasching ring and its height-diameter ratio is 1:2.By increasing cone flanging , it can reduce the resistance of ... materials, such as carbon steel, stainless steel 304, 304 L, 410, 316, 316 L, etc. to choose from.Application:ammonia decarbonization, desulfurization ...