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QJ 3117—

QJ 3117—, Total:2 items.

In the international standard classification, QJ 3117— involves: .


Professional Standard - Aerospace, QJ 3117—

  • QJ 3117A-2011 Technical requirements for hand soldering of aerospace electronic products
  • QJ 3117-1999 Technical requirements for manual welding process of aerospace electronic and electrical products




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