... and ceramic, 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 ... ringa. Materialstainless steel, carbonsteel aluminum, bronze, 304L, 316L, and other alloy.carbon seep aluminium, strengthen polypropylene ...