Hoisting device for cargo ship
The hoisting device for the cargo ship comprises a bottom frame, a supporting frame is vertically fixed to the center of the bottom frame, a lifting chain is arranged at one end of the bottom frame, and the top of the supporting frame and the top of the lifting chain are both connected with a portal...
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Hauptverfasser: | , , , , , , , , |
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Format: | Patent |
Sprache: | chi ; eng |
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