In order to improve Delong cab openings at the intensity is weak, install seals and easily lead to deformation of the cab when lifting change, thereby leaking. Now the cab openings increased at reinforcing plate, in order to verify the results, are arranged four parts of small quantities of test equipment for assembly-line verification. Requirements are as follows: 1 within a 22 station assembly door seals, the doorway to the body of the vehicle assembly strengthen verification. 2. 4 parts of this vehicle were rain track, contact the technical office, quality control section for verification. 3. Serial Number:. FX001434 (offline), FX001443 (offline), FX001510 (on-line), FX001511 (on-line) .4 Please pay attention to the cab ride after installation, the door along the state, contact the technical office, quality control section for verification. Structural construction elements in heavy truck standard cab, the elastic element used are the following: 1, the advantages of the coil spring is a coil spring, mature technology, the use of stress is very low, there are high strength and long fatigue life. But it is bulky, heavy weight, the car is not easy cab factory layout, the need for specialized equipment coil spring helical spring. 2, the torsion spring torsion spring many species commonly used are the following: (1) torsion bar spring this spring cab tilting mechanism is the most widely used. Its advantages are simple structure, easy processing and effortless operation, easy to use; compact, easy layout; easy maintenance; use of reliable, long fatigue life. (2) torsion leaf spring. This spring in weight and size, is bigger than the torsion bar spring. The advantage is that the cab diagram, you can increase or decrease the number of twisted sheet, it is easy to realize changing the spring stiffness for a variety of different weights of heavy truck standard products cab. (3) tube torsion spring. The advantage of this spring is lightweight, rational use of the material, the drawback is the complex structure of the cab, difficult to manufacture. (4) torsion - twisting tube assembly or twisted sheet - a combination of spring torsion tube advantage of this spring is that you can get the best results; the work can obtain very low stress; short length, ease of layout. The disadvantage is complex, difficult to manufacture. In summary, in order to achieve the standard heavy truck cab overturned booster springs, torsion bar with the most prominent advantages, so choose the torsion bar spring as an elastic element inverted. In other Cab | Cab | Jinan Yiu Cheung Yiu Cheung is provided by Jinan Trading Company. Jinan Yiu Cheung Trading Company (www.jinanyaoxiang.com) strong, credible, in Jinan, Shandong's engine assembly industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Jinan Yao innovative ideas will lead you hand into the brilliant harmony for a better future!