Hanging Fences Supplier to Switches Projects
In 2025, Anyang Railway Equipment Co., Ltd. provided a total of 427.12 tons of hanging fences to Huangshan Tongqiao Intelligent Assembly Co., Ltd.
Huangshan Tongqiao Intelligent Assembly Co., Ltd. was formerly the Huangshan Bridge Parts Branch of China Railway 15th Bureau Group Road and Bridge Construction Co., Ltd. It is located in the famous “one of the ten famous mountains in China and the first strange mountain in the world” Huangshan, Anhui, and is located in the Economic Development Zone of Huangshan City. The company is affiliated to China Railway 15th Bureau Group Road and Bridge Construction Co., Ltd., a central enterprise oriented to the railway market and producing machined parts such as bridge embedded parts. The main business involves the research and development, design and production and processing of high-tech materials required for high-speed railways, highways and municipal construction across the country.
In 2025, Anyang Railway Equipment Co., Ltd. provided a total of 427.12 tons of hanging fences to Huangshan Tongqiao Intelligent Assembly Co., Ltd.
| Product | Specification | Unit | Qty |
| Hanging fences | 4≤H≤14m | Ton | 257.4 |
| Hanging fences | 14＜H≤20m | Ton | 156 |
| Hanging fences | 20＜H≤30m | Ton | 13.72 |
Quality standard: Processed according to the drawing “Pingluozhou (Wuzhou) Bridge-04-1”, using QCR749.3-2020 1st coating anti-corrosion system, meeting the “Railway Bridge Steel Structure and Component Protective Coatings and Paints Part 3 Auxiliary Steel Structures” standard.
Multiple anti-corrosion layer performance requirements
| Item | Technical Index |
| Surface | Grayscale, uniform |
| Sealing layer adhesion MPa | ≥3 |
| Diffusion elements | Contains Zn and Al elements |
| Hardness of carburized layer HV | ≥(Matrix hardness +30) |
| Thickness of the carburized layer μm | ≥60 |
| Anti-corrosion layer thickness μm | ≥70 |
| Salt spray resistance | No red rust appears on the cut for 800 hours, and no red rust appears on other parts for 1200 hours |
| Heat and humidity resistance | No red rust appears on the cut for 800 hours, and no red rust appears on other parts for 1000 hours |
| *The thickness of the anti-corrosion layer is the thickness of the penetration layer + the thickness of the sealing layer | |
