Prefabricated assembly type stair support gasket sealing device
The utility model discloses a gasket sealing device at the position of a prefabricated assembly type stair support, which comprises a cast-in-place stair plate joint surface and a prefabricated stair, a stair plate matching groove is arranged on the cast-in-place stair plate joint surface, a fixed h...
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Format: | Patent |
Sprache: | chi ; eng |
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