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Petroleum and natural gas industries. Drilling and production equipment. Part 4. Practices for side-pocket mandrels and related equipment. General technical requirements
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Petroleum products. Fuels (class F).Classification. Part 3. Family L (liquefied petroleum gases)
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The filters of delicate purity of light oil production. Quality requirements for certified products
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Vessels and apparatus. Norms and methods of strength calculation. Calculation of cylindric and conic shells, convex and flat bottoms and covers
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Compressors, pneumatic tools and machines. Terms and definitions. Part 4. Air treatment
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