The TL the steel Tuolian bridge TL series towline the main chain plate (high quality steel chrome-plated) support plate (aluminum) squeeze pull of shaft pins (alloy steel) and other components, so that the cable or rubber tube with towline between relative motion does not produce distortion, chain plate shape effect innovative, smart and reasonable structure and high strength chrome-plated handle, no better deformation of steel, easy to install, reliable, easy to assemble, in particular, this product uses a high strength and durable material, copper alloy axis sales, improve the abrasion resistance of the bend the more flexible, less resistance and reduces the noise, which can guarantee long-term use does not distort, does not sag. The appearance of fine products can be enhanced to a greater extent the overall art aesthetic effect of the machine tool equipment, and enhance the competitiveness of China's machine tools, machinery and equipment in the international market. 
 Towline can adapt to the maximum moving speed of 40 m / min. 
 2 towline maximum moving speed, the sound pressure level is not greater than 68 db. 
 (3) the the towline safety of life is not less than one million times (reciprocating).