64 PRODUCTION, TECHNOLOGIE ET RECHERCHE | MT 6411 technologie et réglementation technique | BT1 réglementation technique | RT appareil de mesure [6821] | méthode de recherche [6416] | norme de commercialisation [2031]
64 PRODUCTION, TECHNOLOGY AND RESEARCH | MT 6411 technology and technical regulations | BT1 technical regulations | RT marketing standard [2031] | measuring equipment [6821] | research method [6416]