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无注管浇注,经过五个阶段试验与90罐试生产,证明在工艺上已找到基本规律,钢质量良好,可以在沸腾钢逐步推广使用。
No injection tube pouring, after five stages of testing and 90 tank trial production, to prove that the basic laws found in the process, good quality steel, steel can be gradually promoted the use of boiling.