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2. Plasma arc cutting popularity on the rise;Blankenship;Weld. J.,1990
3. New oxygen plasma process rivals laser cutting methods;Ferrington;Weld. J.,1994
4. Precision plasma arc cutting;Bogorodskii;Weld. World,1991
5. High-tolerance plasma arc cutting carves out some niches in industry;Irving;Weld. J.,1992