Use of natural stone in offshore hydraulic engineering construction.
Применение природного камня в морском гидротехническом строительстве. |
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GOST 12.1.009-76SSBT. Occupational Safety Standards System. … |
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OST 24.290.17-88Brake cylinders for railway rolling stock. … |
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MinNR 788On approval of the procedure for issuing and … |