Polypropylene (MPP) double-wall corrugated pipe is suitable for the buried protection of power cables and communication optical cables. It features excellent ring stiffness due to its optimized waveform structure and special modified materials, offering high ring stiffness and good flexibility, allowing it to bend freely within a certain range. Made from modified materials with high heat resistance and thermal conductivity, the pipe has a high Vicat softening temperature and high ring segment thermal compression resistance. The inner wall of the pipe is smooth and flat, with minimal contact surface with cables, facilitating cable installation. The pipe is lightweight, contributing to improved construction progress, and offers good sealing performance, allowing for snap-on connections with sealing rings. Due to its excellent performance and relatively economical cost, it has been widely promoted and applied.