w steel material, high-quality steel strip mine w W steel belt material, w steel manufacturers, mining steel prices, steel prices for coal mine workings and face cut open eye and other support. The product can be combined with a variety of organized jointly anchor bolt bracket, it can disperse through a plurality of anchor link up to form a monocoque structure, significantly improve the overall effect of bolt in the roof strata incomplete, Unstable rock is best to deal with Method: Bolt and other materials, with the W-beam fixed on the top and sides of the roadway. W-beam technology with advantages (compared with flat strips) 1, W strip bending section modulus increased 37 times; 2, the rigidity increased 70 times; 3, W-beam with cold hardening process improve the tensile strength of 12% -15%; 4, easy and surrounding dense paste; 5, section high utilization, material saving, low price, model, pictures have any questions, please contact us for Mine W - beam M steel with the latest information.