2 Scaffolds shall be inspected by competent qualified and certified personnel prior to use, after inclement weather and any occurrence where the structure has been modified.
2 Scaffolds shall be inspected by competent qualified and certified personnel prior to use, after inclement weather and any occurrence where the structure has been modified.
使用前、因恶劣天气和其它原因导致其结构被修改后，脚手架都要经合格的胜任人员检查。