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Specification and qualification of welding procedures for metallic materials — Qualification based on previous welding experience

Specification and qualification of welding procedures for metallic materials — Qualification based on a pre-production welding test

Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 11: Electron and laser beam welding

Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 2: Arc welding of aluminium and its alloys

Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 5: Arc welding of titanium, zirconium and their alloys