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All of our bolts are manufactured using European materials with a high elastic limit and have the S355MC quality certificate, according to UNE-EN-10149-2:2014. Likewise, each bolt is marked with an identification number to guarantee the traceability and quality of all of the bolts we manufacture, according to our commitment, ensuring customers see Bulteck as a company in which “top quality is guaranteed”.
Metal support arches are used in a wide range of applications and with many different soil conditions, offering the advantage of being resistance to compression and traction efforts with a high bending moment. This support technique is suitable for soil conditions that are very prone to subsidence due to the efforts caused by converging soils.