On approval of the regulations
for the technical operation of thermal energy facilities
Об утверждении Правил технической эксплуатации тепловых энергоустановок |
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GOST 21.601-79SPDS. Water and sewer lines. Working drawing |
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Gosnadzor 87Regulations for Permits for Emission of Pollutants |
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GOST 24846-81Soil. Methods for measuring strains in … |