ES431795A1 - Mejora en el procedimiento de soldadura por arco electrico con proteccion gaseosa para la soldadura de aceros inoxida- bles.
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Mejora en el procedimiento de soldadura por arco electrico con proteccion gaseosa para la soldadura de aceros inoxida- bles.
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P DE INVESTIGACION CIENTIFICA
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P DE INVESTIGACION CIENTIFICA
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ES431795A1974-11-081974-11-08Mejora en el procedimiento de soldadura por arco electrico con proteccion gaseosa para la soldadura de aceros inoxida- bles.
ExpiredES431795A1
(es)
A process for increasing the proportion of one major gas in a gaseous mixture having at least two major gases and apparatus for carrying out this process