1. Strong compressive strength and aging resistance. Made from high-quality modified PVC engineering plastic through one-time extrusion, it forms a high-strength structure with a grid-like pattern inside the tube, creating a physical steel-like structure. Its ring stiffness is 10-100 times higher than that of ordinary plastic pipes. Under normal conditions, no foundation or encapsulation is required, and it can safely replace steel pipes for crossing roads. It is self-extinguishing (flame-retardant with good extinguishing properties), corrosion-resistant, and aging-resistant, with a service life of over 50 years.

2. Complete specifications and diverse combinations. The product specifications include single-hole, 4-hole, 5-hole, 6-hole, and 9-hole options, accommodating optical cables of different diameters. It can be freely transitioned and combined with existing cement pipes and corrugated pipes, and comes with corresponding accessories such as connectors, end caps, straps, specialized glue, and repair patches for convenient construction operations.

3. Innovative structure, saving pipe space. The external structure features an arc-square shape, allowing for neat and convenient arrangement. It occupies minimal pipe space, only 10% of that required for cement pipes, with reduced excavation volume, effectively saving urban underground pipe resources and minimizing impact on road traffic and the environment.

4. Good flexibility, free bending. A 6-meter-long pipe can achieve a bending chord height of over 1.2 meters, and special directional changes can be accommodated with specialized elbows. During construction, it can easily navigate curves or cross other pipelines.

5. Convenient construction, saving labor and time. The outer sheath and inner ducts are integrated, eliminating the need for secondary duct installation. Cables can be laid directly in one step, avoiding issues like deformation and twisting from secondary duct installation, sorting confusion, and repetitive construction. It is easy to transport; the smooth inner walls make cable pulling effortless; interfaces have assembly marks for orderly connection; With strong compressive strength, it requires a burial depth of only 0.3-0.5 meters, eliminating the need for foundations and cement encapsulation. After backfilling with 20 cm of fine sandy soil, the road can be opened to traffic. No foundation or cement encapsulation is needed when crossing roads. Using PE/corrugated pipes for road crossings requires additional steel pipes (which are heavy, costly, require welding, are cumbersome to install, prone to corrosion, and have a short service life). Cement pouring requires a curing period, and secondary duct installation is needed for optical cable laying. Using grid pipes reduces the construction period by nearly half compared to PE/corrugated pipes and by nearly three-fifths compared to cement and steel pipes.

6. High utilization rate and low comprehensive cost. The internal grid structure is square, integrating the outer sheath and inner ducts. The effective internal space is large, and cut sections can be connected for reuse, saving materials and reducing project costs. It saves nearly 20% in cost compared to using PE/corrugated pipes and can replace steel pipes, saving approximately 50% in investment.