20 TRADE | MT 2031 marketing | BT1 marketing | RT product quality [2026] | standard [6411] | technical barrier [2021] | weights and measures [6411]
20 HANDEL | MT 2031 Vermarktung | BT1 Vermarktung | RT Maße und Gewichte [6411] | Norm [6411] | technisches Handelshemmnis [2021] | Warenqualität [2026]