SPDS. Water and sewer lines. Working drawing
СПДС. Водопровод и канализация. Рабочие чертежи. |
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GOST 12.3.019-80SSBT. Occupational Safety Standards System. … |
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PUE PUE, 7, Section 1Pue_7_Section 1_General |
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GN 2.2.5.1313-03Maximum permissble concentrations (MPCs) of … |