Fully-prefabricated floor slab and fully-prefabricated floor slab connecting joint
The fully-prefabricated floor slab comprises a floor slab body, shear-resistant key grooves are formed in the end face of the floor slab body at intervals, the shear-resistant key grooves are recessed towards the interior of the floor slab body, the exteriors of the shear-resistant key grooves are o...
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Format: | Patent |
Sprache: | chi ; eng |
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