Subjects: *WELDING; *CERTIFICATION; *JOB qualificationsITALYITALIAN Institute of Welding (Company)
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Subjects: *LABORATORIES; *PROFESSIONALISM; *RELIABILITY (Personality trait)GENOA (Italy)
Subjects: *RELIABILITY in engineering; *WELDING research; *SOLDER & solderingIIS Service Srl ; IIS Cert Srl ; IIS Progress Srl
Subjects: *WELDING research; *WELDING instruction; *CERTIFICATIONEUROPE