Swiss soil 马格巴 (Mageba) telescopic device bridge expansion joints for the past 20 years the usual form. As a well-designed telescopic device such alternative products, bridge expansion joints that strip section (bird-shaped rubber band) mode, improvements in technology and development. Its reserved slot (Figure 5-21) and the corresponding series of technical design parameters and specifications listed in Table 5-9. Whether ribbon and box-section telescopic device, the same as the overall cross-sectional dimensions. They all have the same basic structure sf-80 expansion joints, and welded components are manufactured according to standard ST52-3. A basic support system is the successful application of bridge expansion joints 20 years Mageba principle that each rigid steel beams welded to its corresponding joists (beams) on the f-type expansion joints, which can be for all units and their care Liang offer telescopic device supporting force transverse direction vertical expansion joints, expansion joints and through elastic friction bearing preload force to prevent tilting. Preloading the same time to strengthen the torsion elastic contact point for all the support and each unit. The main components shaped steel American Watson (wotson) bridge expansion joint device bridge expansion joints, that edge beam, the beam are made of high-quality corrosion-resistant carbon steel (ie conform to ASTM A-588 standard steel) and manufacturing. Steel Pass CNC turning machine made, pass standard for comparison. Bridge expansion joints rubber seal joints embedded solid, reliable, waterproof performance,, are units of modulus 80mm box-shaped and divided the country in two forms based on a bird-shaped rubber seal shape. The basic structure of the bridge expansion joints and design parameters are: 5-23 and list box as shown in Table 5-10; 5-24 listed and bird-shaped as shown in Table 5-11. f-type expansion joints | Daqing joints | 13833855982 Tong Hao provided by Hengshui Rubber Company. Hengshui Hao-Engineering Rubber Co. (www.htgcxj.com) strong, credible, Hebei Hengshui site construction materials industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement through innovative ideas will lead Hao engineered rubber and you hand in hand into the brilliant, for a better future!