Underground roof supports are widely used in mine roadways, especially in deep complex roadways and soft coal roadways. They have good mechanical properties, high tensile strength and compressive stre

The safety of mine roof support has always been a top priority for mining companies. Selecting high-quality mining equipment is particularly important. How to choose mine roof support should be a prob

The support arch implements the construction site level management system, and various temporary construction facilities and living facilities are implemented in accordance with the approved construct

Steel arch supports, steel arches, and steel grids are all used for support. Don't drop the soil blocking the culvert tunnel. Supports are generally inclined connecting members, the most common of whi

Master the characteristics of high strength of steel arch support. Under the same bearing capacity, the weight of the steel arch support is light; the steel material is uniform and is an ideal elastop

The tunnel roof support is subject to high pressure, long support time, easy installation and deformation, so the tunnel top support is mainly used for mine tunnels, secondary support of mine tunnels,