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.