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编辑本段无缝钢管尺寸及允许偏差


author:yuanmeng time:2011-3-21 15:36:27 read:
偏差等级 标准化外径允许偏差
D1 ±1.5%,最小±0.75 mm
D2 ±1.0%。最小±0.50 mm
D3 ±0.75%.最小±0.30 mm
D4 ±0.50%。最小±0.10 mm

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