Essener Bogen HamburgArchitektIng.-Büro Albert, HamburgFassadeSTP-2DF-10C STP-2DF-10C STP-2DF-10C STP-2DF-10C STP-2DF-10C STP-2DF-10C STP-2DF-10C STP-2DF-10C STP-2DF-10C