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| 改变钢号炉次; 改判钢号的炉次 (因化学成分出格而改变的: The CAS-OB system is designed to reduce the number of diverted heats and increase the production of prime steel. CAS-OB 装置的设计目标是减少改判钢号的炉次，提高优质钢产量。) | |||
| 不合格熔炼 (炉次) | |||
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