The conveyor belt is formed into a circular tube shape, and continuously conveys a variety of loose materials such as powder, granule and block in a closed environment. It is widely used in  power plants, building materials, chemical industry, metallurgy, mining, coal, ports, food and other industries. Based on the continuous research and practice of the tubular conveyor, our company has summed up a set of standards and methods for system design, manufacturing, installation, commissioning and inspection,which has formed a product series.