卷筒集电器部分采用优质集电环和电刷，确保使用寿命更长、可靠性更高。
Reel collector part of the adoption of high-quality collector ring and brush, ensuring a longer life, higher reliability.
卷筒集电器部分采用优质集电环和电刷，确保使用寿命更长、可靠性更高。
Reel collector part of the adoption of high-quality collector ring and brush, ensuring a longer life, higher reliability.
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