Turnout laying: Positioning turnout loft. Pile turnout turnout turnout Surveying staked except the heart, the first fork, fork tail bit outside the center of the pile, the turnout should be around 50 ~ 100m range measured discharge line pile midline symmetry turnout plant in order to control the line smooth connection with the turnout. Turnout central control of piles and set the interval measured simultaneously track symmetry turnout model, eliminating error adjustment in the measurement. Turnout Construction: Seamless Turnout. Paving the track bed. Stratified laying ballast symmetrical turnout, turnout symmetry with vibratory roller compacted price, compacted density of not less than 1.7g / cm3, shall not exceed the amount set aside from the Road 50mm, ballasted surface flatness tolerance of 30mm / 3m. In a small number of remaining amount from the Road situation, with a special switch tamping machine from the road, the front fork and rear fork should be within 30m of each bottom line station is within range and paving ballast downslope, then laying a temporary track row. Symmetrical turnout suppliers, Hongsheng railway accessories (certified), symmetrical turnout Ltd provided by Forest City Hongsheng railway accessories. Forest City Hongsheng Railway Parts Co., Ltd. (www.hstldc.com) Henan Anyang, railway, subway Equipment leader with over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Hongsheng railway accessories in leadership with the staff warmly welcome all inquiries negotiations to create Hongsheng railway accessories a better future.