PIPELINE VALVES. SEAL TIGHTNESS STANDARDS
АРМАТУРА ТРУБОПРОВОДНАЯ. НОРМЫ ГЕРМЕТИЧНОСТИ ЗАТВОРОВ |
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MCHS 607Approving the procedure for the voluntary … |
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OST 39-061-78Oil treating plants. Parametric Series |
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SP 60.13330.2012Heating, ventilation, and air conditioning. |