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BS 1490:1949

Specification for aluminium and aluminium alloy ingots and castings for general engineering purposes
standard by BSI Group, 08/18/1949

BS 125:1924

Specification for hard-drawn copper solid and stranded circular conductors for overhead power transmission purposes
standard by BSI Group, 10/03/1924

BS 1123:1950

Valves, gauges and other safety fittings for air receivers and compressed air instalations
standard by BSI Group, 02/23/1950