1) Cable marker posts are generally suitable for the ground warning signs of underground cable lines such as cable trench, underground cable, and underground cables, which plays a role in warning and signs.

2) The use of the cable marker post can indicate the existence of the cable line underground, which plays a warning role to avoid the damage to the underground pipeline during the project construction process or the casualties.

3) The use of the cable marker post can also indicate the position and direction of the underground cable pipeline, which is convenient for the management and inspection of the underground pipeline.

4) The use of cable marker posts can strengthen company management, meet national standards and requirements, and enhance the company's image.

Cable marker posts can be divided into plastic-steel cable marker posts, FRP cable marker posts, and cement cable marker posts according to their material classification. In particular, there is a difference between the rigid PVC cable marker posts (PVC cable marker posts) and the FRP marker posts. The surface of the PVC marker post is relatively smooth, and the surface of the FRP marker post is relatively rough, but the strength of the FRP marker post is much stronger than that of the PVC material.

Cable marker posts are used between two adjacent miles piles, and the ground marks buried at a certain distance to confirm the direction of the cable pipeline are used. The communication marker post is used to mark the placement and direction of the communication optical cable, which is also called the optical cable pile. There are two pairs of perforations at the bottom, and a small broken steel bar with a diameter of 0.5 and 30 cm in diameter can be used to fix a small amount of cement in a cross to expose a 1000 mm buried depth of 600 mm.