Mine W steel is a new type mine pit and tunnel support material, it is with longitudinal shearing strip as raw material, through multiple groups of continuous cold rolling mill shaped steel products, and bolt joint combined bolting truss, a lower support costs, save the supporting steel etc..

      Shandong 1 with the Swiss mining technology limited production of W steel range, according to different geological conditions and operating environment for model selection;

      2.W type steel bending section modulus increased 37 times, down section modulus is about to cross section modulus 2.75 times, so when in installation, the anchor rig up tightly;

      3 and other types of steel, W steel is not easy to tear, and steel, to raise about 70 times;

      4.W strip in the cold rolling process of hardening effect, improve the tensile strength of 12% - 15%;

      5 important point is that the W strip section high utilization rate, material saving, low price.

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