| 摘要 |
Carbon brush including at least one pressed-in stranded copper wire arranged as a plait-woven hollow stranded wire, formed from a plurality of copper strands of diameter 0.05 to 0.1 mm, and recrystallized by heat treatment. The hollow stranded wire contains at least one stiffening inner wire having a diameter of 0.1 to 0.5 mm, the diameter of the at least one stiffening inner wire being at least twice the diameter of any of the copper strands.
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