| 摘要 |
1285765 Composite casting KARLSCHMIDT GmbH 12 Aug 1969 40245/69 Heading B3F [Also in Divisions C7 and F2] A composite bearing comprising an aluminium alloy lining on a steel backing is made by heating the alloy to 885‹ C. and casting it on to a steel strip which has been heated to the melting point of the alloy. The alloy contains 15% by wt. lead, 5% copper and 10% silicon.
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