Construction Design and Estimate Documentation. Heating, ventilation, and air conditioning. Working drawings
Система проектной документации для строительства. Отопление, вентиляция и кондиционирование воздуха. Рабочие чертежи |
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GOST 11017-80High-pressure seamless steel pipes |
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GOST R 52630-2012Steel welded vessels and apparatus. General … |
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FZ 40Federal Law of April 25, 2002 N 40-FZ. ON … |