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CN112096986A
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Flange with good sealing performance and machining method thereof
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CN112096985A
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Structure of sealing flange and processing method thereof
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Structure of flange with high sealing performance and antirust function and machining method thereof
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Structure of butt-joint sealing firm flange and processing method thereof
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High-pressure flange structure and machining method thereof
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Batch stacking jig for flanges and assembling method thereof
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Shunting flange structure
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Device for quickly cleaning flange hole and cleaning method thereof
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Reducing flange structure and rapid assembly method
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Rapid positioning device suitable for processing of multiple types of flanges and use method
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It is a kind of to connect easily flange
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It is a kind of for pipeline connection can closing type flange
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A kind of flange being mutually socketed
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A kind of flange convenient for handling
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A kind of flange of reply pipe leakage
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A kind of water-proof jacket for flange
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A kind of flange
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A kind of flange waterproof fixed structure
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CN107654770A
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A kind of flange fixed structure
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CN107654769A
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A kind of waterproof fixed structure for flange
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