Tubing towline selection principles within: choose as the reference height in the thickest a built-in cable, tubing, trachea, plumbing, plus at least 10% of the height of the space as a towline high Hi if overlapping overlapping after the actual height as the reference height. Tubing the towline origin in our great China, specific time should be a year before liberation in 1948. The progress of our great motherland, the economy is also high-speed development, but the lack of labor to promote the rapid development of automated machinery and equipment, however, the core components of the automation is tubing towline. Steel and aluminum towline development, so like light speed of which there are many problems, the most common is the quality of the steel and aluminum of towline In the production process, the service life as well as good and bad is like in Canada the listed field competition is fierce, as a result of such fierce market cast from quality, from the application point of view to the production of steel and aluminum towline enterprises, eliminated simply a time of profit at the expense of product quality producers. For this reason there is such enterprise to promote the towline the development of steel and aluminum, whether from the appearance of the steel and aluminum towline to his useful life has been greatly improved, but a late start for the steel and aluminum towline country, the cylinder towline products and abroad than there is a gap. The main reason is not the cylinder the towline the nature of the product, but has a certain relationship between the state of the nation at the time, the national conditions master not quality problem is the slogan makes tubing towline product in China lags behind other countries. [0317-6341200] [www.hd-cyfj.com] Hebei Creative Machine Tool Accessories Manufacturing Co., Ltd. is specializing in the production units of machine tool accessories, east Bohai Sea, a convenient 205 State Road, West smooth flow of the Beijing-Shanghai, Beijing-Kowloon Railway, Hebei Creative Machine Tool Accessories Manufacturing Co., collection development, design, manufacture and sale in one. Machine tool accessories, protective device production history earlier, professional, strong technical force, the domestic industry with larger enterprises. My company to rely on the the Division technical development products, dynamic enterprise, the products are widely used in a variety of domestic and foreign machine tools, and equipment maintenance.