[德国标准] DIN 58405-1-1972 Spur Gear Drives for Fine Mechanics

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英文DIN 58405-1-1972 Spur Gear Drives for Fine Mechanics Scope, Definitions, Principal Design Data, Classification

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DIN 58405-1-1972 Spur Gear Drives for Fine Mechanics Scope, Definitions, Principal Design Data, Clas

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