Purpose of zhenda suspended scaffold: 1.construction and decoration on outer wall of high building or installation of structural members; 2.repair, maintenance and cleansing of outer wall of high building; 3.construction, inspection, maintenance and repair of big project, such as big tank, chimney, dam, bridge and headframe; 4.welding, cleansing and painting of large ship; 5.fabrication and installation of billboard at aerial building.