The escalator consists of a steel truss spanning the floor and a stepped gear, pulley, guide rail, movable link, etc., and is operated by electric power. The slope of the escalator is about 30°, and the width is for single use and double use. The running speed should be about 0.5 m/s. The layout of the escalator is parallel, cross, hybrid, and the like. Compared with the elevator, the escalator has the characteristics of high passenger transportation rate and continuous flow of people, and is suitable for public places such as department stores, stations, underground railways, etc., as well as floors with relatively concentrated local people in high-rise buildings. Farm Fence,Cattle Farm Fence,Grassland Fence Wire Mesh Perforated Metal Sheet Co., Ltd. , http://www.nsmeshfence.com