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[GB 5056-1985] 钢的临界点测定方法(膨胀法)[已作废]
发布时间：1986-01-01
实施时间：1986-01-01
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[GB 5057-1985] 钢的连续冷却转变曲线图的测定方法(膨胀法)[已作废]
发布时间：1986-01-01
实施时间：1986-01-01
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[GB/T 5058-1985] 钢的等温转变曲线图的测定方法[已作废]
发布时间：1985-04-15
实施时间：1986-01-01
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