25U Section Steel

25U Section Steel Introduction U steel because of its cross section is very like the English letter "U" word.    U-shape also called mine support steel, mainly for the production or arched steel shed, u-shape set role in coal mine tunnels, roadway support.   U-shape according to different can be divided into: m weight 25 U steel, U steel, 36 u-shape, today we need to know is the earliest one model, that is 25 u-shape.U-shape according to different length can be divided into: