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Q:- Which of the following processes use a constant characteristic :
Sub-arc < 1000 amps, MMA, Electro slag. TIG / TAG, Sub-arc > 1000 amps, Electro slag. Sub-arc < 1000 amps, MIG / MAG, Electro slag. MIG / MAG, Sub-arc > 1000 amps, Electro Slag.