| Reference Estimation Standards and Price Rates. Collections of Estimation Standards and Price Rates for Construction Work.
Базисные сметные нормы и расценки. Сборники сметных норм и расценок на строительные работы. |
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GOST 3634-99Manhole access covers and street storm drain … |
SanPiN 2.1.5.980-00Water Disposal in Populated Areas and Sanitary … |
GOST 9293-74Nitrogen gas and liquid nitrogen. Specifications. |