PTFE Diaphragm, PTFE Seals, Rubber Diaphragm manufacturer / supplier in China, offering Diaphragm Pump Spare Parts NBR Buna Nitrile Rubber Valve Ball - 63.5mm (2-1/2′′), Diaphragm Pump Replacement Spare Parts Repair Kit Check Valve FKM Ball for Wilden 2′′ Aodd, Wilden Replacement Repair Part 02-1010-51 Rubber Neoprene Diaphragm and so on.