qualification test

• Manufacturers ' record of brazer or brazing qualification tests
  镀焊工或钎焊合格试验的生产商记录
• Qualification test of welding operators
  焊接操作工技能评定
• Qualification test of welders - fusion welding - part 1 : steels
  焊工的资格鉴定试验.熔焊.第1部分:钢
• Welding procedure qualification test for steels , nickel and nickel alloys
  钢镍及镍合金的焊接工艺评定试验
• Reliability qualification test for electronic measuring instruments
  一种智能电子测量系统中粗大误差的处理方法
• Qualification test specification
  质量鉴定试验规范
• Qualification test of welders - fusion welding - aluminium and aluminium alloys
  焊工的认可试验.熔焊.铝和铝合金
• Method of welding procedure qualification test for stainless - clad steel
  不锈复合钢焊接程序质量合格鉴定试验的方法
• Qualification test procedure
  质量鉴定试验程序
• Report of analyzing for social work occupational qualification test in shanghai
  上海市社会工作职业资格考试分析报告