Brown coals, hard coals and anthracites. Methods for determination of beryllium, boron, manganese, barium, chromium, nickel, cobalt, lead, gallium, vanadium, copper, zinc, molybdenum, yttrium and lanthanum
Unified system of corrosion and ageing protection. Non-metallic materials and articles with their application. Method of microbiological resistance tests under natural and atmospheric conditions
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