GQF-C60-type bridge expansion joint manufacturer of military sales calls, status of bridge expansion joints development is well known, temperature changes, shrinkage and creep of concrete, uneven foundation settlement, under the influence of vehicle load, bridge length will change so that the beam end is displaced to accommodate this shift and kept driving comfort, it must set the bridge expansion joint device. Thus, the role of bridge expansion joints, is to adjust the displacement between the upper structure by temperature changes, vehicle load environmental characteristics and physical properties of construction materials caused. In general, the joints should have good durability, ride comfort, good water resistance, ease of construction, simplicity over the current application of inexpensive joints are: 1, continuous bridge deck pavement joints in order to reduce stretch seam quantity, increase traffic smooth, continuous bridge deck expansion joint, it is used for multi-span simply supported structure. From the use effect is better, but there are certain issues, such as deck irregular cracks and water leakage, it is proposed to strengthen the sides and in the middle of the range bars set false seam 2 × 1 cm. 2, rubber expansion joints this kind of simple structure, the amount of stretching is generally 4-6cm, through the use of observation ineffective, more frequently, mainly include: strip break off, causing leakage, subsidence or torsion, deformation of the anchor loose , driving there thrashing and noisy. Steel expansion joints (including the comb plate joints) two more joints in large and medium bridges built in the 1980s of applications, especially combs joints. This kind of expansion joints have good durability, not deformed corrosion, traffic is relatively stable, but to some extent, shortcomings such as: steel difficult to weld; anchoring is not strong, there is greater so that the main beam cold leaking, corroded , affect the service life of the bridge and bridge aesthetics, after loosing, Loud noise when the vehicle is traveling, the abnormal activity within the seam folder into debris. Shipping company every day: Fujian: Fuzhou, Xiamen, Zhangzhou, Quanzhou, Putian, Sanming, Nanping, Longyan Ningde, Jiangxi: Nanchang, Jiujiang, Jingdezhen, Pingxiang, Xinyu Yingtan, Ganzhou, Yichun Jian 饶山东 on Fuzhou: Jinan, Qingdao, Yantai, Zibo, Weifang, Weihai, Zaozhuang, Jining, Tai'an, Dongying Rizhao Laiwu Linyi Dezhou, Liaocheng, Heze Binzhou South Africa Henan: Zhengzhou, Kaifeng, Luoyang, Pingdingshan, Hebi, Jiaozuo, Xinxiang, Anyang, Puyang Luohe, Xuchang Sanmenxia Nanyang Zhoukou Zhumadian suppliers Qiu Xinyang Hubei: Wuhan, Huangshi Xiangfan Jingzhou Yichang Jingmen Ezhou Shiyan Xiaogan Huanggang Xianning Suizhou Enshi