Corrugated metal culvert pipe is a flexible structure with excellent characteristics bellows transverse displacement in the structure of compensation, can take advantage of the steel tensile strength properties, superior distortion performance characteristics, with a greater resistance to deformation and anti-settling capacity, particularly suitable for soft soil, expansive soil, loess and other areas of low ground bearing capacity and earthquake-prone areas 2. Because corrugated metal pipe culvert construction is simple and short construction period (usually a culvert construction time within one working day), shorten the time exposed permafrost, thawing small amount, it is especially suitable for permafrost regions. When corrugated metal pipe culvert construction damage to the environment, suitable for areas with fragile ecosystems. 3. corrugated metal pipe culvert construction only on the basis of import and export processing, sand, stone and a small amount of material, it is suitable for sand, stone and deprived areas. The corrugated metal pipe culvert construction with little artificial, it applies in the absence of labor areas. 5. metal bellows instead of reinforced concrete culverts were conducive to resolving the destruction of the northern winter cold concrete pipe culvert structure, suitable for high altitude areas. 6. Due to the use of standardized design, production, simple design, production without environmental impact, centralized industrial production, short production cycle, it applies to high quality requirements, tight construction projects.