U-shaped steel Full name---Hot-rolled steel for mine tunnel support

Main features: high pressure, long support time, easy installation, not easy to deform.

Main uses: Mainly used for mine tunnels, secondary support of mine tunnels, and support and support of mountain tunnels.

U-shaped steel is widely used as the main steel for manufacturing tunnel metal shrink brackets.

There are four main types of U-shaped steel: 18U, 25U, 29U, and 36U.