... separation, constant decompress tower plants, compounding ammonia plant, decarbonization plant, separation of ethylbenzene, seperation of isooctane/ methylbenzene.Material: PE, PP, RPP, PVC ... .6730.9294193060 16, 25, 38, 50,76mm plastic pall ring (Material: PE, PP, RPP, PVC, CPVC, PVDF, PTFE, HDPE ...