| 摘要 |
The invention concerns a method whereby a steel strip (41) derived from a roll is gradually straightened out, cambered and engaged on rollers (13) supported on cylinders (12), until, after the corresponding perimeter is obtained, the ends are separated and welded together, then in lifting with the actuators (12) said first hoop to a height sufficient for production, then gradually assembling by welding a second hoop by the above process. All those operations are managed by a programmable automaton.
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