| Federal Law of December 7, 2011, N 416-FZ. On Water Supply and Wastewater Disposal.
Федеральный закон от 07.12.2011 N 416-ФЗ. О водоснабжении и водоотведении. |
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GOST 27006-86Concrete. Mix proportioning rules. |
RD 07-309-99Regulations Governing the Procedure for Issuing … |
OST 24.201.03-90-Steel Pressure Vessels and Equipment |