Plastic towline in accordance with the structure can be divided into i bridge plastic towline closed plastic towline; divided into small towline, general type Tuolian with large towline in accordance with the model, in accordance with the noise figure can be divided into ordinary towline and mute towline; can be divided in accordance with the form of ordinary towline, the towline in parallel, S-type towline; raw materials, sub-plastic towline model is generally determined on the basis of the internal height and internal width, because they are not standard products, the outer size of the factory are inconsistent. 
 Plastic towline model 7 * 7,10 * 10,10 * 15,15 * 15,15 * 20,15 * 35,15 * 40,15 * 40,15 * 50,18 * 18,18 * 25 18 * 35,18 * 50,18 * 60,25 * 25, 25A * 38,25 * 57,25 * 77,25 * 103,35 * 50,35 * 60,35 * 75,35 * 100,35 * 125,35 * 150,35 * 175,35 * 200,45 * 50,45 * 60.45 * 75,45 * 100,45 * 125,45 * 150,45 * 200,56 * 95,56 * 125, 56 * 175,56 * 200,56 * 300 There 62,65,80 series and other towline. (A) the towline shape like a tank chain, consisting of a large number of unit link, the 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. 1) Material: reinforced nylon, with high pressure and tensile load, good toughness, high elasticity and abrasion resistance, flame retardant, high and low, stable performance, can be used in outdoor, nylon content determines how much 
 The use of strength and wear resistance of the towline and the size of the noise up and running. But over, but 19% nylon content ranging from 5% -17%. 
 (2) resistance to: oil, salt, and a certain acid, alkali capacity. (3) speed and acceleration (specific speed, acceleration, depending on the operation may be). 
 (4) operational life. General maintenance of the content and requirements of plastic towline equipment: work: 1, check the shift record books. 
 2, in strict accordance with equipment lubrication chart provides refueling, do the time, quantitative and qualitative. 
 3, the downtime of equipment, more than eight hours when the device is not switched on, the first low turn 3-5 minutes, make sure that the lubrication system is smooth,