
The plum blossom tube adopts a porous integrated structure, with good rigidity and uniform force distribution. The friction coefficient of the inner wall of the product is small, the cable threading is light and easy, and the construction is simple and feasible. Having multiple hole positions, it can reserve pipe holes to improve the utilization rate of communication hole positions. The product is suitable for a wide temperature range (+80-40) and can be used in both tropical and cold regions. The joint adopts a sleeve joint structure. The connection between pipes can be completed without any tools, making it easy to construct and maintain. The service life of plum blossom pipes is over 30 years under burial depth conditions.