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汽车、摩托车发动机铸造铝活塞金相检验
Metallographic examination of piston for engines of automobile and motorcycle
价格：￥0.00
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汽车发动机镶耐磨圈活塞金相检验
Metallographic examination of piston with ringcarrier for automotive engines
价格：￥0.00
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汽车发动机曲轴技术条件
Specifications of crankshaft for vehicle engine
价格：￥0.00
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汽车发动机轴瓦锡基和铅基合金金相标准
价格：￥0.00
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汽车发动机 轴瓦双金属结合强度破坏性试验方法
价格：￥0.00
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