Norm
[AKTUELL]
AWS B 2.1/B 2.1M
; B2.1/B2.1M:2023
AWS B 2.1/B 2.1M
; B2.1/B2.1M:2023
Specification for Welding Procedure and Performance Qualification
Titel (englisch)
Specification for Welding Procedure and Performance Qualification