Pall Ring, Imtp, Tri Pack manufacturer / supplier in China, offering Mbbr Biofilter Media 25*10mm Virgin HDPE Material Plastic Mbbr Plastic Products for Efficient Water Treatment Aquaculture Systems Enhanced Filtration, PP PE CPVC PTFE PVDF PFA 25 mm 38 mm 50 mm 76 mm 100 mm 1" 2" 1.5" 1 Inch 2 Inch 1.5 Inch Plastic Pall Ring of Tower Packing for Scrubbing Tower, High Quality Honeycomb Ceramic for Catalyst Stone Substrate for Car Exhaust and so on.