... , metal, and ceramic, including Pall ring, Tellerette packing, VSP packing ring, rasching ring, Ladder ring, Wire gauze packing,1.Metal pall ... It has lower pressure reducing, flux is great, high efficient, comparing with other pall ring, HYPAK filling has lower pressure ... It has lower pressure reducing, flux is great, high efficient, comparing with other pall ring, HYPAK filling has lower pressure ...