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Brown coals, hard coals, anthracites, carbonaceous argillites and alevrolites. Method for the determination of germanium
Document status: Active
Auxiliary compounds for textiles. Glycasine. Specifications
Document status: Active
Four-wheel bogies of passenger cars for mainline railways gauge 1520 mm. Specifications
Document status: Withdrawn
Black-and-white photographic materials with transparent sublayer. Method of general sensitometric test
Document status: Active