... , double layer, four layer 2.Strength: Flat webbing sling-1T-30T round-1T-300T webbing strapGeneral instruction1.It is a soft sling ... : single layer, double layer, four layer3.Strength: Flat webbing sling 1T-30T round webbing sling 1T-300T4.Sling width: 25mm-150mm5.Working ... ports, terminals, chemical, steel, machinery, installation and other lifting site. webbing strap