... tower packing include: PP, PP+Fiber glass, PVC,CPVC,UPVC,HDPE,PVDF,Carbon steel,SS304,SS316,SS304L,SS316L and ceramic. Mail products ... ring PTFE bonded EPDM gasket PTFE diaphragm PTFE pall ring PVC pall ring PVDF pall ring round valve trays structure Mellapak ...