Movable lining strip for on-site square tube splicing and use method thereof
The invention relates to a movable lining strip for on-site square tube splicing and a using method thereof, and belongs to the technical field of steel constructions.The movable lining strip comprises a lower lining strip tube, an upper lining strip tube is arranged at the upper end of the lower li...
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Format: | Patent |
Sprache: | chi ; eng |
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