The underground roof support is a passive support for underground coal mine support. It has high tensile strength and compressive strength. At the same time, it has good toughness performance, high su

The tunnel roof support is a passive support for coal mine support. It has high tensile strength and compressive strength. At the same time, it has good toughness properties, high support force, and s

The mine roof support is mainly used for mine roadway, secondary support of mine roadway, and support support of mountain tunnel. The use of U-shaped mine roof supports effectively reduces the occurre

The steel arch support is a kind of passive support for coal mine support. It has high tensile strength and compressive strength, good toughness, high supporting force, large supporting strength and c

Tunnel Roof Support, U-shaped Steel Support, U-shaped Tunnel Roof Support

U-shaped support arch is a kind of passive support for coal mine support. It has high tensile strength and compressive strength, good toughness, high supporting force, large supporting strength and ca