In the mid-1970s to the 1980s, also designed and produced with the "75" type on the 9th, the 12th standard single turnout supporting cross points turnout, crossover, single symmetric turnout on the 6th, the 18th big turnouts, three turnout, turnout concrete sleeper, such as supporting the "75" series turnout. By the early 1990s, China's railway laying use "75" type (including "62" type) turnout over 100,000 group, accounting for more than 80% of the total railway turnouts. A top anti-regulation measures. Accordance with the regulations and is installed on the front line turnouts adequate and effective anti-climbing device, there are various locations around 75m turnouts and insulation joints through regular trains, increase the number of anti-climbing devices. 2. Symmetrical turnout tamping strengthen procurement, fill compacted road bed. 3. Refurbishment tip rail with side studs, bolts or failure timely replacement of worn bushings, while surfacing, wear leveling interval iron, plywood and bolt holes. 4. Strengthen the link maintenance and repair parts manufacturers turnout symmetry, symmetrical parts found relaxation and failure turnout plant, tightened or replaced promptly. 5. Elimination of large rail joints, replacement of insufficient length of the short track, eliminate crawling and widening rail joints, make up and tighten anti-climbing devices. Symmetrical turnout plant | Xin Yang Machinery (certified) | Hebei symmetry turnout by Forest City Xin Yang Machinery Industrial Co., Ltd. Forest City Xin Yang Machinery Industry Co., Ltd. (www.lzxyjx.com) Henan, 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 customers needs. Xin Yang Machinery leadership in the staff warmly welcome all inquiries negotiations to create Xin Yang Machinery a better future.