Hard Corner conceives and factory of trestles guaranteeing an irreproachable robustness and quality! Today trestle HARD CORNER is established of several patents at the level of their assemblies and at the level of their capacities of modularity. The official test realized by the APAVE of the hydraulic jack approaching the 4 tons of pressure distributed on the only one of our trestles HARD CORNER did not always make it break. Figures speak about them even, 4012 kg of mechanical resistance, for a unitarian weight of 3,2 kg.