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- pl: Projektowanie instalacji wodociągowych w układzie pierścieniowym
- en: Designing sanitary system loop installations
- de-at: Designing sanitary system loop installations
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- bg: Проектиране на сключена водоснабдителна инсталация
- cs: Designing sanitary system loop installations
- de: Designing sanitary system loop installations
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- hr: Designing sanitary system loop installations
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- uk: Designing sanitary system loop installations
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