EXAMEN Y CALIFICACION DE LOS OPERARIOS DESTINADOS A TRABAJOS DE SOLDEO ELECTRICO POR ARCO, EN LAS ESTRUCTURAS DE ACERO
INSPECTION AND QUALIFICATION OF OPERATORS ASSIGNED TO ELECTRIC ARC WELDING WORKS IN STEEL STRUCTURES.
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CTN 14 - Welding and allied processes
It is cancelled by: UNE-EN 287-1:1992
