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UNE 18020:1952 DISK RIGID FOR TRANSMISSIONS.
UNE 28001:1952 CLASSIFICATION OF THE MAIN TYPES OF AIRCRAFTS.
UNE 48014-20:1952 TESTS OF MATERIALS USED IN THE MANUFACTURE OF PAINTS AND VARNISHES. REACTION OF BLUE BERLIN
UNE 48014-14:1952 TESTS OF MATERIALS USED IN THE MANUFACTURE OF PAINTS AND VARNISHES. SAPONIFICATION NUMBER AND ESTERIFICATION NUMBERS OF SOLVENTS
UNE 7045:1952 POROSITY DETERMINATION OF ONE TERRAIN.
UNE 34306:1952 PREPARATION OF OLIVE PULP TO EXTRACT OIL.
UNE 1062:1952 CONVENTIONAL SYMBOLS FOR PIPES.
UNE 27183-1:1951 STOCKLESS ANCHORS. TYPE A. ASSEMBLY.