... great separating,effect cold and heat resistonce,long lifetime.Features:the Pall Ring packing have characteristics of ... distribution for liquids in the packing bed.Materials:stainless steels,carbon steels,aluminium,copper,bronze,304L, ... stainless steel (AISI304) in the material thickness shown. Other material available: carbon steel, stainless steel including 304, 304L, 410,316, 316L. Stainless Steel ...