Chemical FillingChina Acid Resistance PP PE CPVC PTFE PVDF 25mm 38mm 50mm Plastic Pall Ring for Scrubbing Tower Packing, Find details about China Random Packing, Plastic Packing from Acid Resistance PP PE CPVC PTFE PVDF 25mm 38mm 50mm Plastic Pall Ring for Scrubbing Tower Packing