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BS 6644:2011 |  на печать | | Specification for the installation and maintenance of gas-fired hot water boilers of rated inputs between 70 kW (net) and 1.8 MW (net) (2nd and 3rd family gases) |
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| | Библиография | Обозначение | BS 6644:2011 | | Заглавие на английском языке | Specification for the installation and maintenance of gas-fired hot water boilers of rated inputs between 70 kW (net) and 1.8 MW (net) (2nd and 3rd family gases) | | Количество страниц оригинала | 66 | |
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