Carbonaceous materials for the production of aluminium. Cathode block materials. Part 1. Determination of the expansion due to sodium penetration with application of pressure
Product quality index system. Compressors (air and gas driven ones) and refrigerating plants of refrigerating capacity exceeding 2.9 Kw (2500 kcal/h). Nomenclature of basic indices
Preservation of cultural heritage objects. Frame, half-timbered and mixed constructions. Repair, conservation, restoration and recreation. General requirements
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