| 摘要 |
A connection of a coupling collar to the ends of hardened conveying pipes for fluidically conveying solids, such as, sands, gravels and concrete, includes a coupling collar with a connecting piece which is glued in a tension-proof manner to the outer surface of the end of a pipe and at least one wear ring is placed at least in the length portion of a connecting flange of the coupling collar at the end face of the pipe end.
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