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Anti-freezing exhaust valve
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A kind of intellectual worm gear Hand-operated butterfly valve
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A kind of lower buffer compartment membrane composite air inlet and exhaust valve
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A kind of composite exhaust valve with buffer unit
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Hydraulic differential butterfly-shaped water pump control valve
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Built-in diaphragm type sleeve valve
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Double-ball compensation connector capable of balancing axial force
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Fastening combined pin prevented from disengaging
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Inclined plate micro-resisting water pump control valve
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Screwing opening type check valve capable of balancing pressure automatically
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Pressure reduction and stabilization valve assembly
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Butterfly valve with bi-directional sealing device
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Ball valve with valve seat sealing device
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Method for allowing multi-orifice valve to online change valve flow and valve stroke
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Emergency intercepter valve used for disaster prevention
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Filter used in raw water coarse filtration
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Anti-freezing vent valve device
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Floating sealing structure of thrust shaft rod
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