
Leaded brass 58 per cent copper, 3 per cent lead rods and sections (other than forging stock)
出版:Standards Australia

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This standard specifies requirements for leaded brass, 58 per cent copper, 3 per cent lead (designated CZ121), rods and sections for machining and general purposes other than forging having a diameter or width across flats not less than 1/16 in (1.6 mm).
BS 249:1963 - Identical