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UNE 30001:1957 CHEMICAL PRODUCTS. CLASSIFICATION BY QUALITIES, DEFINITIONS AND STANDARDIZATION.
UNE 17010:1957 CUT THREADED SNAP HEAD SCREWS.
UNE 17011:1957 CUT THREADED CHEESE HEAD SCREWS.
UNE 17017:1957 CUT THREADED SCREWS SNUK AND SNAP HEAD SCREWS.
UNE 17020:1957 CUT THREADED SCREWS. HOLE DIAMETER.
UNE 25107:1957 CONSTRUCTOR PLATES OF RAILWAY CARS.
UNE 18052:1957 CONVEYOR BELTS COMPOSED OF RUBBER AND CLOTH. CHARACTERISTICS OF MATERIALS WHICH FORM THE BANDS.
UNE 40002:1957 YARNS TESTS. TORSION DETERMINATION.
UNE 40020:1957 USEFUL WIDTH OF WORK FOR COTTON CARDS.
UNE 30004:1957 CHEMICAL PRODUCTS. ANALYSIS REAGENTS. DETERMINATION OF ARSENIC.