The reducing annealing furnace is adopted.
采用无氧化还原退火炉。
Reducing annealing furnace: The furnace is used to anneal and reduce cold rolled carbon steels.
还原退火炉：炉子用于冷轧低碳钢的还原退火。
Protective gas system: pipe line from the protective gas generation station to reducing annealing furnace.
保护气系统：从保护气体发生站至还原退火炉的管道。
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