For road signs and portal gantries
Road sign foundations always have three wings and come in two different pipe diameters; 70 and 168 mm. For smaller road signs and street signs, smaller foundations are used, from 0.6 t0 1.2 m with a 70 mm diameter. For foundations of information signs and portal gantries the larger foundations are used, from 1.2 to 3 m and with a larger diameter of up to 168 mm. We check foundations for portal gantries extra carefully with magnetic particle testing of the welds to ensure quality.