Dong Xin Hengshui bridge parts factory, specializing in the production of bridge parts, since its inception, with excellent quality and full service and win new customers. Products have been sold throughout the country, currently opened exclusively for Line: Beijing, Shanghai, Tianjin, Chongqing, Liaoning, Jilin, Heilongjiang, Hebei, Shanxi, Shaanxi, Gansu, Qinghai, Shandong, Anhui, Jiangsu, Zhejiang, Henan, Hubei, Hunan, Jiangxi, Taiwan, Fujian, Yunnan, Hainan, Sichuan, Guizhou, Guangdong, Inner Mongolia, Xinjiang, Guangxi, Tibet, Ningxia. To bring you the lowest prices highest quality. Welcome to the new and old customers to buy! 1 installation method before using rubber balloon, first check the steel cage wire connectors and wire rolling head can not be bent radially inward direction, in order to avoid pricks mandrel to form an air leak. Before pouring concrete reinforcement cage bottom cushion, then pull the rope to a mandrel steel cage, and the longitudinal seams facing up. 2. Note: You must brush the release agent when the rubber balloon used in order to reduce pumping mold resistance, airbag not allowed to use oil instead release agent, while oil for rubber erosion, another oil will pollute the bars. Diluted with soap and water, the effect is ideal as a release agent. The proportion of soap powder and water, about 1:20 3, inflated to a predetermined pressure to open the valve to close the valve, should not be over-pressure. 4, shaped mandrel should be alternately inflated through a predetermined pressure. 5, will enter a steel cage around the mandrel up and down to be fixed. Overcome the buoyancy and move around. 6, after the pouring of concrete, using a vibrating rod vibration from both sides at the same time, preventing move around the mandrel. And the vibrator section head not touch the core module, so as not to puncture the leak. 7. After the initial setting of concrete, open the bleed valve rubber balloon, you can extract the core mold. (Demold time customized according to the construction case) generally as follows: when there is a clear fingerprint pressed the belly of toilet paper before releasing. Note: Can be customized according to customer demand for processing. All technical parameters to customer requirements or drawings shall prevail.