66 ÉNERGIE | MT 6606 politique énergétique | BT1 combustible | BT2 industrie énergétique | NT1 gisement de gaz | RT appareil à gaz [6821] | butane [6616] | distribution du gaz [2846] | gaz naturel [6616] | propane [6616]
66 ENERGY | MT 6606 energy policy | BT1 fuel | BT2 energy industry | NT1 gas field | RT butane [6616] | gas appliance [6821] | gas supply [2846] | natural gas [6616] | propane gas [6616]