... including Pall ring, Tellerette packing, VSP packing ring, rasching ring, Ladder ring, Wire gauze packing,1.Metal pall ringa. ... Materialstainless steel, carbonsteel aluminum, bronze, 304L, 316L, and other alloy.carbon seep aluminium, strengthen polypropylene ... great, high efficient, comparing with other pall ring, HYPAK filling has lower pressure reducing ...