Slings are ropes made of steel wire ropes or synthetic fibers for hoisting. It is also called jack rope or jack rope. Slings mainly include metal slings and synthetic fiber slings. Metal slings mainly include wire rope slings, chain slings, etc. Synthetic fiber slings mainly include rope and belt slings made of nylon, polypropylene, polyester and high-strength high modulus polyethylene fibers.

Slings are ropes made of steel wire ropes or synthetic fibers for hoisting. It is also called jack rope or jack rope or rope buckle. It is used to connect the crane hook and the hoisted equipment.