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A kind of rope stretching closure assembly for harbour machinery side rope outlet
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A kind of cart driving mechanism
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A kind of tightener sprocket and broken chain detecting device
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A kind of dead-weight lifting altitude position-limit mechanism, crane and method
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A kind of gantry container crane sling upper rack rotating pin mechanism, crane and method
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Hopper door device with extensible chute
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A kind of route-variable height beam driving for crane room
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Rigid luffing single arm support loop wheel machine peculiar to vessel and its folding and unfolding method
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Novel anti-wear device of port loading and unloading hopper and hopper
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A kind of device for rolling walking mechanism steering during dress for high pedestal jib crane
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A kind of pull-type carriage walking mechanism
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A kind of collapsible cantilever crane
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A kind of FLAME NC cutting method of steel pipe full penetration intersection groove
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Forked tail type assembling platform module connecting device and connecting method thereof
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A kind of lock catch type platform for lining modular connection and attaching method thereof
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Self-elevating lifting device for quay crane and lifting method
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Safety device of ship unloader cab
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Rope outlet cover structure used for portal crane
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Large gantry crane and height-increasing lifting beam capable of increasing the lifting height of large gantry crane
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Rope outlet rainproof device for crane machine room
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