| 摘要 |
PROBLEM TO BE SOLVED: To provide a concrete pump vehicle with a simplified turning joint for feeding concrete to a elevated place. SOLUTION: A concrete pump vehicle for placing concrete from an end hose connected to a docking hose provided at the ends of a plurality of bent booms includes a turning joint 51 having hydraulic pipelines of two going and returning circuits for oil to be supplied to a plurality of hydraulic cylinders as hydraulic actuators for operating the plurality of bent booms (three stages).
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