Mining Support U Beam Steel Arch Supports

Mining Support U Beam Steel Arch Support is mainly used for mining tunnel support ,with the features of high pressure steel structure.
Main purposes: mainly used in mine tunnel, mine tunnel secondary purpose of support, as well as the support of the mountains tunnel support.
Main features: pressure, supporting a long time, easy to install is not easy deformation characteristics. 
1)Specification: U25, U29, U36;
2)Assembly: top beam, two landing legs, four clamps, two baseplates
3)Material: 20MnK Q275
4)Grade: SS400 Q235 A36
5)Size: 50mm*37mm*4.5mm-320mm*88mm*8mm