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Petroleum products and bituminous materials. Determination of water by distillation method
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Iron ores and concentrates. Method for the determination of mineralogical type
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Zinc concentrates. Method for the determination of aluminium oxide
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Petroleum and natural gas industries. Rotary drilling equipment. Part 2. Inspection and classification of used drill stem elements. General technical requirements and control methods
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Spiral classificators. Types, basic parameters, dimensions and specifications
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