The steel arch support can be made by centralized prefabrication or on-site prefabrication for a certain construction site.On-site prefabrication of steel arch support must choose a flat and open site

Steel mine support is a convenient, easy-to-use and irreplaceable support tool for surface engineering such as slopes, deep rock and soil foundation pits, and underground chamber construction such as

Tunnel roof support is a kind of passive support for coal mine support, with high tensile strength and compressive strength, as well as good toughness. The composition of the tunnel roof support inclu

Underground roof supports are mainly used for mine tunnels, secondary support of mine tunnels, and support for mountain tunnels. It is reliable, effectively reduces the occurrence of accidents such as

The mining support arch produced by China Coal Group strictly implements relevant industry standards. The products are the first to use standardized technology to produce, and their quality is highly

Steel arch support is a very popular support tool at present. It is composed of a steel support and a combination of tray nuts. It is widely used in coal mine roadways, mine support, and underground t