| http://www.w3.org/ns/prov#value | - Now, the ring rotor 2, the rotor contacting portions 3, the rotor side plate 4 and the side plate supporting portions 5 are formed integrally by making use of a resilient plastic material having a comparatively high Young's modulus and, when required, containing a filler such as polycarbonate or acrylic resin via injection molding.
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