Procurement of steel needs to have a pair of "fire eyes", in order to quickly have a good distinction between the quality of steel. In fact, as long as master "six see a listen", you can also distingu

Attention should be paid to the construction of u-shaped mine roof support: when erecting the mine roof support, the working platform must be built at the construction place, and the vertical leg of t

Compared with other rigid supports, u-shaped steel supports have flexible, stable and reliable bearing capacity, adapt to the load and deformation of soft surrounding rock, high utilization rate of se

36U section steel support is mainly a passive support for coal mine support, with high tensile strength and compressive strength, good toughness performance, high supporting force, large support stren

U-shaped steel support card cable is a reliable connection fastener provided by u-shaped steel support. The lap length of u-shaped steel is generally 400mm (different requirements in different drawing

Steel mine support refers to the artificial structure installed in the mine roadway to support the rock. Its function is to control the movement of surrounding rock and prevent the surrounding rock fr