| 摘要 |
<p>1448679 Alloy steel LUCAS ELECTRICAL Ltd 29 Jan 1974 [17 Feb 1973] 7900/73 Heading C7A [Also in Division B3] A roller clutch sleeve is made by extrusion of a billet of steel composed of 0À21% carbon, 1À24% manganese, 0À3% silicon, 0À033% sulphur, 0À06% phosphorus, 0À13% nickel, 0À23% chromium, 0À15% molybdenum, 0À15% copper and the remainder iron.</p> |
