Diaphragm Pump, Membrane Pump, Pneumatic Pump manufacturer / supplier in China, offering 2" Air PP Diaphragm Pump for Sludge Solvents, Mechanical Seal Air Driven Double Diaphragm Pump with PTFE Diaphragm, Industrial 1 Air Diaphragm Pump Max Permitted Grain 0.16in. 4mm Fanged Connection and so on.