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淬火热处理类

热处理    

各类五金工具、机床、汽车、摩托车、飞机、轮船等金属部件的表面、内孔、局部或整体淬火

heat treatment   The surface, inner, local, or integral quench of metal parts such as hardware tools, machine tools, cars, motorcycles, aircraft, ships, etc

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