The Mongolia Long-Distance Deep-Buried Water Pipeline Project, located in an extremely cold region, spans 120 kilometers in length, with burial depths ranging from 3.5 to 7 meters and pressures from 0.8 to 2.5 MPa. The installation environment is complex, with diverse pressure requirements. Our company's steel-plastic composite pipes, with their superior performance in high pressure resistance and weather resistance, successfully completed the long-distance water supply project in Mongolia. This demonstrates Donghong Pipelines' high pressure resistance and weather resistance in extremely cold environments.