| 摘要 |
A rotor for a screw rotor machine, which rotor comprises a metal shaft (3, 13) and a rotor body (1) of plastics material moulded on the shaft, which is provided with a number of radially extending projections (4) with equal distribution around the shaft, which projections (4) are provided with essentially peripherally extending wings (5) originating from the ridge of the projections (4).
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