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BS EN 14730-2-2021Railway applications. Track. Aluminothermic welding of rails. Qualification of aluminothermic welders, approval of contractors and acceptance of welds BS EN 14730-2-2021Railway applications. Track. Aluminothermic welding of rails. Qualification of aluminothermic welders, approval of contractors and acceptance of welds

BS EN 14730-2-2021Railway applications. Track. Aluminothermic welding of rails. Qualification of aluminothermic welders, approval of contractors and acceptance of welds

  • 标准类别：[BS] 英国标准学会标准
  • 标准大小：
  • 标准编号：BS EN 14730-2-2021
  • 标准状态：
  • 更新时间：2022-04-05
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BS EN 14730-2-2021Railway applications. Track. Aluminothermic welding of rails. Qualification of aluminothermic welders, approval of contractors and acceptance of welds

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