design of welding procedure
digitizing procedure in out-patient service
qualification of welding procedure
welding procedure
焊接工艺
焊接程序
焊接规程
熔接步骤
组焊工艺
焊缝工艺规范
焊接技术
工艺设计
焊接顺序
焊接
Welding Procedure Assessment
Welding procedure measure
Welding procedure qualification
Welding Procedure Qualification Test
welding procedure qualification transferring
Welding Procedure Specification
welding procedure specification test
assembly welding in tumel
fillet welding in flat position