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Home › Global Industry Standards › GB/T 4754—2017 › C · 制造业 › 31 · 黑色金属冶炼和压延加工业 › 313 · 钢压延加工
GB/T 4754—2017 CN Group
313

钢压延加工

1
Class
Direct Subordinate Classifications · 1 Items
3130
钢压延加工
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Peer Categories
311 炼铁 312 炼钢 313 钢压延加工 314 铁合金冶炼
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