The outer diameter of the steel pipe should be 48-51mm, and the wall thickness should be 3-3 Steel pipes with severe corrosion, bending, or cracks of 5mm should not be used.
scaffolding adjustable base jack
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Continuous beam (continuous steel structure) hanging basket casting construction technology management
Random parking at the construction section of Jinyang road in Leiyang City has seriously affected the travel of nearby residents
