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With special raw material (raw rubber bearing) and small friction coefficient; electricity -saving.
含特殊原料原橡胶轴承，摩擦系数小，更省电。
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The small gear is fixed and supported by a bearing seat.
小齿轮由轴承座固定支撑。
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The small gear is fixed and supported by a bearing seat.
小齿轮由轴承座固定支撑。
youdao