Metal pall ring 1)special structure 2)Material:stainless steel, carbon steel, aluminum, bronze, 304L, 316L, and other alloy Welcome to our ... Raschig Ring.Material: Metal Pall rings are available in a wide range of materials such as stainless steel, carbon steel, aluminum, bronze, 304L, 316L ... ×38×0.713594.51460031215350×50×0.810594.9650031213176×76×1809618702162 stainless steel pall ring