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被代替 GB/T 15826.4-1995
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锤上钢质自由锻件机械加工余量与公差 圆环类 Machining allowances and tolerances for steel open die forgings on hammer—Rings
发布日期: 1995-12-13
实施日期: 1996-08-01
废止日期: 2008-08-01
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