Standard Symbols for Welding, Brazing and Nondestructive Examination Simbolos Normalizados para Soldeo, Soldeo Fuerte y Examen No Distructivo Spanish
国外标准现行
标准号:AWS A2.4-SP-1993
标准名称: 标准符号焊接,铜焊和非破坏性的考试(西班牙)
英文名称:Standard Symbols for Welding, Brazing and Nondestructive Examination Simbolos Normalizados para Soldeo, Soldeo Fuerte y Examen No Distructivo Spanish