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。
Use a pressure reducing regulator or separate control valve to safely discharge gas from cylinder.
使用减压调整器或单个的控制阀来安全地从钢瓶中排出气体。采用止回阀，防止回流入钢瓶。
Protective gas system: pipe line from the protective gas generation station to reducing annealing furnace.
保护气体发生站至还原退火炉的管道。
Protective gas system: pipe line from the protective gas generation station to reducing annealing furnace.
保护气体发生站至还原退火炉的管道。
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