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CN105387233A
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Backwater valve system capable of being closed rapidly
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CN105387236A
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Water return system convenient to adjust and detect
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CN105422904A
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Lock valve low in maintenance cost and convenient to use
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CN105422898A
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Rotatable control ball valve
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CN105387237A
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Water return system low in maintenance cost and convenient to use
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CN105387229A
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Electric locking valve
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CN105387238A
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Ball valve capable of being closed quickly and adjusting flow quantities slightly
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CN105387234A
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Backwater valve system
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CN105465448A
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Passively-controlled locking valve
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CN105387255A
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Locking valve capable of adding disinfectant automatically
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CN105422899A
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Water returning system capable of monitoring liquid flow
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CN105465414A
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Ball valve capable of monitoring fluid flow
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CN105387240A
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Ball valve convenient to maintain quickly
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CN105387235A
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Locking ring type holding valve convenient to adjust and detect
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CN105465397A
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High-accuracy control ball valve
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