Design data structure: fastener type steel pipe scaffold old steel pipe inspection rules


Design data structure: fastener type steel pipe scaffold old steel pipe inspection rules
(1) surface corrosion depth should comply with the rules. Rust should check once a year. Check, should be in steel pipe corrosion serious three root extract, in the area of each corrosion serious transverse sampling inspection, shall not be used when the corrosion depth more than a specified value.
(2) steel tube bending deformation should comply with the rules.

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