Steel towline, generally used in the machine tools, cable, tubing, pipe, water pipe, duct, from the traction and protection. The use of steel towline originated in Germany, and later domestic references and innovative structure. Steel towline has been widely used in the machine, to protect the cable also makes the whole machine looks more beautiful. Towline, rectangular metal hose, protective cover, bellows, plastic coated metal hose belong to the cable protection products.