| 摘要 |
A core mold is made up of an annular body of substantially H-shaped cross-section, and two annular side portions of semicircular cross-section, the legs of which are bonded to the legs of the body on opposite sides thereof. The resulting core is of substantially oval cross-section, and two recessed areas are formed in the body portion of the core to readily receive tire roll-restraining hoops during assembly of the core. The core elements are pressed in a manner to provide proper shape thereto for assembly of the final core.
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