Before removing, comprehensive inspection trusses, according to test results, develop a work plan for approval, after safety technical tests to begin dismantling.
Before demolition, a comprehensive inspection of trusses, according to the results of the inspection, the preparation of the work plan, submitted for approval, safety technology to be closed before the demolition can begin.
Before the removal, the truss shall be inspected comprehensively, and the operation plan shall be drawn up according to the inspection results, submitted for approval, and the removal can be started only after the safety technical disclosure.