生命层
发表于 2025-4-1 03:58:31
Study on Continuous Rolling Fabrication of Iron Strip from Metal Powders,dvantage of this process is the lower cost of equipment and operation, as compared with that in the conventional melting method. If the metal can be refined from the ore in a form of powder in the near future, the powder rolling process will be advisable from an economic viewpoint.
Assignment
发表于 2025-4-1 09:39:42
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欺骗手段
发表于 2025-4-1 13:14:28
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