Manufacturer of Metal Rasching Ring; Material:SS 304 304L 316 316L 410 ... XINTAO Metal Raschig RingIntroduction:Metal rasching ring is made of materi als like carbon steel, stainless steel or Aluminum alloy, etc. ... material stainless steel (AISI304) in the material thickness shown.Material available:carbon steel, stainless steel including 304, 304L, 410,316, 316L. Stainless Steel Metal Rasching Ring