混凝土箱涵模具是为了避免城市道路重复开发挖掘，减少城市的视觉污染，从而达到更好的保护城市市容的环境，达到提高城市能源供给，确保国家海绵城市安全运转而产生的新型市政基础建设的必要设施工具。地下综合管廊系统不仅解决城市交通拥堵问题，还极大方便了电力、通信、燃气、供排水等市政设施的维护和检修。保定乐丰机械响应国家政策及行业发展趋势，率先成立了专业的方涵模具研发设计团队，对混凝土箱涵模具进行深度研究及开发；综合国内外方涵模具的优点进行设计，极大的提高方涵模具的精度及强度和拆装模具的效率；

Concrete box and culvert molds are designed to avoid repeated development and excavation of urban roads, reduce the visual pollution of cities, and t achieve a better environment for protecting the city's appearance and improving the urban energy supply. Necessary facilities for new types of municipal infrastructure to ensure the safe operation of national sponge cities. The underground integrated pipe corridor system not only solves the problem of urban traffic congestion, but also greatly facilitates the maintenance and overhaul of municipal facilities such as electricity,munications, gas, and water supply and drainage. Baoding Lefeng Machinery responded to the national policy and intry development trend, and took the lead in setting up a professional Fanghan mold research and development design team to conduct in-depth research and development of concrete box and culvert molds; To improve the precision and strength of Fanghan's die and the efficiency of disassembling and assembling die, the advantages of Fanghan's die at home and abroad arebined.