Encircling type pipeline mop
The invention provides a surrounding type pipeline mop which comprises an annular mop head and a mop rod, the annular mop head is fixedly connected with the mop rod, the annular mop head is of an annular structure, and mop lint is arranged on the inner side of the annular mop head. The annular mop h...
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Format: | Patent |
Sprache: | chi ; eng |
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