Partially opened and closed type foundation pit dustproof awning device
The utility model discloses a partial opening and closing type foundation pit dustproof awning device, and relates to the technical field of building dust prevention. The dustproof curtain comprises a dustproof curtain body and a steel wire rope, the dustproof curtain body is arranged above the stee...
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Format: | Patent |
Sprache: | chi ; eng |
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