Grooved embedded parts are patented products （patent number: ZL 95 2 19774.x） that have been widely used in the projects undertaken by our company and registered with the State Intellectual Property Office. Their main performance characteristics are as follows:

　　1. Stable quality, safe and reliable.

　　2. Large adjustment and easy installation.

　　3. Flexible connection and strong adaptability.

　　4. No welding is required on site.

　　5, easy to bury facility workers on site.