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地下井闸阀 BS5163
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带标尺弹性闸阀闸阀BS5163
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暗杆软密封闸阀（弹性闸阀闸阀）BS5163
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BDF-DOUBLE FLANGE BUTTERFLY VALVE
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BE-WAFER TYPE BUTTERFLY VALVE
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BE-WAFER TYPE BUTTERFLY VALVE
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BE-WAFER TYPE BUTTERFLY VALVE
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BL-LUG TYPE BUTTERFLY VALVE
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BW-FULL PEFE LININGWAFER TYPE BUTTERFLY VALVE
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BU-FLANGE TYPE BUTTERFLY VALVE
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BL-LUG TYPE BUTTERFLY VALVE
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WAFER&LUG TYPE BUTTERFLY VALVE
