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 using CNC turning from cd40 bridge expansion joints, pass standard for comparison. Bridge expansion joints rubber seal embedded solid, reliable, good 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. Bridge expansion joints is entered after the 1990s, the car to the world in the form of the most widely used engineering major expansion device. Especially in the overall shaped steel forming technology has made a major breakthrough in the future expansion joints, both in terms of quality and supply of steel shaped steel beams have significant progress, comfortable wooden bridge expansion device is a possible expansion in the amount of adaptation 80 bridges any eyes expansion joints, expansion joints and its main components can be standardized and serialized 160 bridge expansion joints, to meet the needs of large bridge projects. Therefore, as previously described in the current market, including in the form of domestic and foreign variety, there might be more and more, they differ from their technical performance, the bridge expansion joints, but not very obvious, each pros and cons, it can be said is not very well-structured, how to determine a structure of relatively good and bad, as an important issue the design, manufacture and application can not be avoided, the normal use of the bridge project can not be ignored, Editor's views on the following aspects of the proposed immature. cd40 bridge expansion joints | Nanyang joints | Buy joints to be provided by the Hengshui Hengshui Hao-Hao Tong Rubber Co. project. 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!