1, channel steel is hot - rolled - shaped steel, U shaped steel is usually cold - rolled steel. 2. The detailed dimensions and mechanical properties of channel steel have been established into the na

Our company's u-shaped steel support has a quality inspection report, the quality can be guaranteed, can be made for mine roadway, mine roadway secondary support, as well as through the mountain tunne

Underground roof support the best stress state is close-grained filling after the uniform compression, as applied to underground roof support pressure value reaches a certain value, the bracket can p

U-shaped steel support is a kind of passive support for coal mine support, with high tensile strength and compressive strength, good toughness performance, high supporting force and large support stre

The main raw material of tunnel roof support is U section steel, which needs to be cut after cold forming and then connected with U section steel karan. It is mainly used for mine roadway support, sec

Steel mine support is very common in our life, and it is very helpful to our production. U-shaped steel support is widely used in coal mine support. In addition, the steel support also has very good t