| 摘要 |
PROBLEM TO BE SOLVED: To provide an assembling hoop for a cage reduced in cost because of requiring no skill in a field work, never causing a deformation because of having no fixation by welding or thus a defective by welding, and capable of being stabilized in quality. SOLUTION: A locking part 3 corresponding to a main bar of each pitch is provided on the inside of at least two circular arc hoop bodies 1.
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