| 摘要 |
A removable forming support comprising a tapered sleeve having a first, internally threaded end and a second end that has a smaller outside diameter than does the first end. A threaded tie rod is threadedly received in the first end of the tapered sleeve, while a further tie rod can optionally be threaded into the second end of the tapered sleeve, which then also is internally threaded. The tie rod or rods are secured in position in the ends of the tapered sleeve.
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