| 摘要 |
An arrangement for straightening large-diameter pipes. The straightening arrangement comprises a frame 3 which rests against the inner wall of a pipe 1, the frame being inserted into a pipe 1, and power units, e.g. hydraulic cylinders 4, 4', 4", in the longitudinal direction of the frame 3. The power units push against the inner wall of the pipe 1 so that the cross-sectional profile of the pipe 1 will assume the required shape. <IMAGE>
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