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https://www.t2.bbslu.de/service/formulare/ Formulare - T2 BBSLU May 11, 2026 - Formulare Blockplan Gastronomie 2026/20267 Blockplan_Bauberufe 2026/27 Blockplan_Industrie-Isolierer_2026/27 Blockplan Gastronomie 2025/2026 Blockplan Bau... formulare