Non-metallic rigid pipes for building; non-metallic transportable buildings; road safety devices consisting of prefabricated concrete blocks; barriers, fences and traffic channelizers for road protection, for direction of traffic, for traffic detours and for road pavement separation, all beforementioned goods not of metal, * only for use concerning safety during road construction and in public spaces * and not included in other classes [ *and solely for use in road construction for road safet...