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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Evaluation form for construction quality acceptance of unit works of water conservancy and hydropower projects and instructions for filling in the form (Volume I and Volume II)
Special construction scheme of basket pull rod cantilever scaffold 2021word170 pages (editable and downloadable)
