Towline shape like the elite the production Tuolian (1) tank chain, consisting of a large number of unit links link to rotate freely. 
 (2) the towline of the same series within and outside the same pitch, inside width towline, the bending radius R may have a different choice. 
 (3) unit chain around the chain plate and the upper and lower lid, to towline each section can open, easy assembly and disassembly, do not have threading, open the cover to the cable, tubing, trachea, plumbing in drag chain. 
 (4) Also available separate pieces, separated by chain space as needed. The towline classification Tuolian materials can be divided into: steel towline, the towline of steel and aluminum, plastic towline, nylon towline 
 Forms can be divided into: the bridge towline, multi bridge towline towline closed silencer towline towline opening the universal towline, steel and aluminum towline can be divided into the TL type, TGA, type, TGB type. 
 Plastic towline can be divided into heavy, light, model, set outside the high number of the towline. Towline selection 
 Within high: choose the most coarse of a built-in cable, tubing, trachea, plumbing, etc. as the reference height, with at least 10% of the height of space as a towline. If the overlap according to overlap the actual height as the reference height. 
 Inside Width: Choose coarse cables, tubing, trachea, water pipe, its diameter, and the towline within wide reference and left at least 10% of the width of the space. 
 Bending radius: built-in cable, tubing, trachea, plumbing, and the largest bending radius as a reference value, and left more than 10 percent of the space. 
 Towline built-in cable, tubing, trachea, plumbing placement guidelines 
 15% of the remaining space should be left, so that the built-in cable, tubing and other free activities do not generate tension in the radius direction of the towline. 
 The diameter difference should be separated from the large wire laying, weight evenly distributed, when necessary, can be used separate piece separate. 
 High-speed or high-frequency operation, the wires are separated from each other in the level, do not overlay each other in the cable, trachea, tubing, and other more time to recommend the use of the separated piece. Towline use 
 1, suitable for use in reciprocating motion of the occasion and be able to play the built-in cable, tubing, trachea, pipes and other traction and protection role. 
 2, The towline each sections can open, easy to install and repair. Movement, low noise, wear-resistant, high-speed movement. 
 3, the towline has been widely used in CNC machine tools, electronic equipment, stone machinery, glass machinery, doors and windows machinery, injection molding machine, robot, lifting and transport equipment, automated warehouses and so on.