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Workover and production hoisting units for oil and gas wells. Types and specifications
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Lubricating oils. Determination of barium, calcium, magnesium and zinc content by method of atomic absorption spectrometry
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Bituminous materials. Determination of solubility in trichloroethylene
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Testing of chemicals of health hazard. In vitro 3T3 NRU phototoxicity test
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Raremetallic concentrates. Methods for the determination of titanium dioxide
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