FR Entretien et maintenance en sécurité des bâtiments On request Building light work - Building maintenance 01.01.2099
DE Étanchéité toiture plate Niveau 2 On request Building light work - Building envelope - Building insulation - Watertightness 01.01.2099
FR Étanchéité à l’air Dupont de Nemours On request Building light work - Building envelope - Building insulation - Watertightness 01.01.2099
FR Maçon-Étancheur On request Building light work - Building envelope - Building insulation - Watertightness 01.01.2099