Founded in 1998, Castle Corrugated Metal Pipe Co., Ltd. has grown up into a leader of manufacturing corrugated steel pipes and arches. With long history and proven quality by former projects, end users or contractors can be confident that Castle CMPs and arches are the exact products they are always looking for.Where corrugated metal pipes are used?In today's infrastructures, corrugated metal pipes (CMP) are increasingly employed instead of concrete culverts. The basic reason of the change is that CMP costs less but serves longer than any other including concrete structure.In transportation, it can be used as small bridges, underpasses of highway or railway, grader separations and animal crossing bridges.In mining, stockpile tunnel and escape tunnels are always fabricated by corrugated steel pipes. Super or ultra-heavy corrugation supports extremely heavy loads.For Perennial Frozen Soil Area, project time is very short. How to finish a culvert within limited time? CMP is the optimum choice. Although it is fabricated in the factory or on job site, the construction time is significantly reduced. In addition, corrugated steel pipes are flexible and will not be affected by the cold weather.
