Elevation adjusting device for steel truss and method for adjusting elevation of steel truss
The invention discloses an elevation adjusting device for a steel truss and a method for adjusting the elevation of the steel truss, and belongs to the field of steel truss construction technology. The elevation adjusting device is arranged at the tops of steel pipe upright posts (6) of a steel trus...
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Format: | Patent |
Sprache: | chi ; eng |
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