| 摘要 |
To build a tyre carcass, a tubular carcass body is formed about a building drum, which has a longitudinal axis, and an outer surface coaxial with the longitudinal axis and defined at least partly by a ring of longitudinal articulated rods lying in respective planes of a sheaf of planes through the longitudinal axis; the building drum locking two bead bundles to the tubular carcass body and torus-shaping the tubular carcass body by moving and/or deforming the articulated rods in their planes.
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