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我们用西德引进的20MnCr5钢制造了CA-10汽车的二档和三档齿轮及中间轴,以及CA-10B汽车的后桥螺旋伞齿轮。20MnCr5钢的化学成份、机械性能
We used the 20MnCr5 steel imported from West Germany to manufacture the second- and third-gear gears and countershafts for the CA-10 and the rear-axle helical bevel gears for the CA-10B. 20MnCr5 steel chemical composition, mechanical properties