| 摘要 |
PROBLEM TO BE SOLVED: To intercept transmission of a moisture content to a paper filter contacting an inside of a dust bag by absorbing moisture and water on the floor surface by the dust bag of a dust collector put on a floor surface. SOLUTION: A material of the bottom surface of the dust bag 7 contacting the floor surface is constituted of a material having a waterproof performance. COPYRIGHT: (C)2003,JPO
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