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Online monitoring device for winch
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Direct-current power supply connection circuit and method for transformer substation
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Bending auxiliary tool, bending method, blast furnace coal injection system and coal injection method
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Zero-leakage automatic gas sampling device and sampling method
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Oil tank oil fume recovery device and recovery method
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Turning device and belt feeder
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Safe stay cord device and belt conveyor
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Steam turbine bearing bush sealing device
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Online covering maintenance method for open type glasses valve corrugated pipe
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Spacing piece and stop device of colliding
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Device and method for replacing steel wire rope
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Emulsion removing device, emulsion removing method, reversible cold rolling mill and rolling method
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Ladle cover nozzle repairing and sand filling device and using method thereof
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Bucket wheel mechanism and blending reclaimer
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Anti-splashing device for hydraulic oil during hydraulic pipeline disassembly
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Cable suspension clamp and cable pulley
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Improved cable pulley
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Cable pulley traction device and cable pulley equipment
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Filtering device and filtering method for removing impurities in rare earth molten steel
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