Prestressed bidirectional ribbed composite floor slab
The utility model discloses a prestressed bidirectional ribbed composite floor slab, and belongs to the field of buildings. The prestressed bidirectional ribbed composite floor slab comprises a prefabricated prestressed bidirectional ribbed grooved bottom slab and cast-in-situ concrete which are pou...
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Format: | Patent |
Sprache: | chi ; eng |
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