The multi-function ladder is manufactured with the aluminum extruded profile produced by our company. The manufacture processes include blanking, riveting and semi-assembling, and the product is assembled with safety hinge pin. The product has a design load of 120kg, light in weight, high strength, and it is also foldable to be stored in reduced size. It is safe and easy to use, suitable for home, office, library,, shopping center, warehouse etc.