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E3® Tungsten electrodes (lilac) provide great flexibility of use. They are particularly recommended for welding steel, stainless steel, copper and brass at low to medium intensities. They can also be used to weld aluminium using alternating current. Non-radioactive, they have characteristics close to the thoriated Tungsten electrode. They are easy to ignite and offers an excellent weldbead aesthetics. They are suitable for automatic welding.