| Product certification procedures
in the building industry
Порядок проведения сертификации продукции в строительстве |
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GOST R 54808-2011PIPELINE VALVES. SEAL TIGHTNESS STANDARDS |
SNiP 2.04.05-91Heating, Ventilation, and Air Conditioning |
RusRWS ЦРБ 756Regulations for the technical operation of the … |