Projekty SPIROSOL potrubí
Projekt: LIDL Cerhovice č.18-289, propustek pod silnicí DN 500 mm
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Projekt: Praha Michle BD Hadovitá č. 17-272, TZB odvětrání budovy DN 1200 mm
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Projekt: Malíkov č. 07-001: propustek pod silnicí DN 800 mm
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Projekt: Lipník n. Bečvou č.13-101: propustky pod lesními cestami DN 1500 a DN 2250 mm
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