• The spiral vane is fixed on the central shaft, forming a whole body which is disposed at the middle of the spiral air locking valve body and is firmly welded with the spiral air locking valve body.

    螺旋叶片固定中心形成一个整体置于螺旋阀体中间螺旋锁风阀体

    youdao

  • The design of the Buddha in the central depression Waida a new shaft into the return air.

    设计井田中部新建回风立井

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  • The utility model relates to a filter-element of air-filter comprising casing, central shaft and folding filter-paper.

    实用新型涉及一种空气过滤器滤芯,壳体、中心轴和折叠式滤纸组成。

    youdao

  • The utility model relates to a filter-element of air-filter comprising casing, central shaft and folding filter-paper.

    实用新型涉及一种空气过滤器滤芯,壳体、中心轴和折叠式滤纸组成。

    youdao

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