Fixing device for casing pipe penetrating through side wall and beam
The utility model discloses a side wall penetrating and beam penetrating sleeve fixer, which is characterized in that a split sleeve hoop is made of hard plastics, the structure of the sleeve half hoop is that a semi-square outer hoop frame is fixedly connected outside a semi-arc inner hoop frame, a...
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Format: | Patent |
Sprache: | chi ; eng |
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