MT/T 699-1997煤矿采空区阻化汽雾防火技术规范The technical norms for fire-prevention of mine gob areas by the inhibition of atonized sprays MT/T 699-1997煤矿采空区阻化汽雾防火技术规范The technical norms for fire-prevention of mine gob areas by the inhibition of atonized sprays

MT/T 699-1997煤矿采空区阻化汽雾防火技术规范The technical norms for fire-prevention of mine gob areas by the inhibition of atonized sprays

  • 标准类别:[GB] 国家标准
  • 标准大小:
  • 标准编号:MT/T 699-1997
  • 标准状态:现行
  • 更新时间:2022-07-09
  • 下载次数:
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