... transfer media. SS 304/316/316L/317/317L. The Metal Tower Packing (including stainless pall ring, raschig ring, etc.) are good ... (MAR)Features: 1) Made of carbon steel, stainless steel, and aluminum alloy2) Main types: pall ring, hypack, raschig rings, saddles, cascade ... industry,and environmental protection industry10) Application: mass transfer media Metal Tower Packing