… safety or traffic control equipment for railways, tramways, roads, inland waterways, parking facilities, port …
Explanatory notes
… safety or traffic control equipment for railways, tramways, roads, inland waterways, parking facilities, port … This group includes : (1) Assembled track , i.e., rails already fixed to sleepers or other supports. Such track may … or points are activated by a pneumatic power engine, the admission or release of air into or from the motor cylinder …