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1. For gouging, maintain the angle between the steel plate and the gouging electrode to about 10° and contact the lower part of the protective container with the bottom of gouging and make forward and backward movements to create grooves by melting base metal from arc.
2. When perforating, hold the electrode upright and insert into the plate in up and down movement.
3. If the electrode absorbed moisture, dry for 30-60 minutes at 70~100℃ as the arc may break.
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