GB/T 15169-2003
ActiveQualification test of welders--Fusion welding forsteels
钢熔化焊焊工技能评定
📚 References & Relations / 引用与关联
normative_reference
GB/T 16672-1996
normative_reference
GB/T 19418-2003
normative_reference
GB/T 3375
normative_reference
GB/T 5185
normative_reference
ISO 9017
normative_reference
TR 15608