ONORM ISO 1081-1984 Drives using V-belts and grooved pulleys terminology《使用V型带和槽轮传带 自动化与控制工程学术语》.pdf

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ONORM M 6515-1984 Drives using V-belts and grooved pulleys endless V-belts Dimensions《使用V型带和槽轮传带 连续V形带尺寸》.pdf

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