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GOST R ISO 12989-2-2017
Carbonaceous materials used in the production of aluminium. Baked anodes and sidewall blocks. Determination of the reactivity to air. Part 2. Thermogravimetric method
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€10
GOST ISO 17078-1-2014
Petroleum and natural gas industries. Drilling and production equipment. Part 1. Side-pocket mandrels. General technical requirements
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€10
GOST 20461-75
Gaseous helium. Method for determination of impurities volume fraction by emission spectral analysis
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