VEHICULOS DE CARRETERA. UNIONES MECANICAS ENTRE TRACTORES Y SEMIRREMOLQUES. INTERCAMBIABILIDAD
ROAD VEHICLES. MECHANICAL COUPLING BETWEEN TRACTORS AND SEMITRAILERS. INTERCHANGEABILITY.
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CTN 26 - Road vehicles
ISO 1726:1973 (Identical)
It is cancelled by: UNE 26264:1993
