Round Sling is generally used in flammable and explosive atmospheres, and it does not produce sparks themselves. The world's first synthetic fibre flat Webbing Slings since 1955 in the United States successfully applied to lifting the industrial field, it is widely used in shipbuilding, metallurgy, machinery, mining, petroleum, chemical, electric power, electronics, ports, transportation, military and other fields. Lifting belt has portability, convenient maintenance and good chemical resistance, and has the advantages of light weight, high strength, not easy to damage the surface of hoisting superior characteristics, it is more and more used by researchers in many ways and gradually replaces the wire rope rigging.