Which is prefered current for high quality welding AC or DC?

or:Which is prefered current for high quality welding AC or DC?or:High quality is a product of the welder's skill. Each rod is designed for a differe

or:Which is prefered current for high quality welding AC or DC?

or:High quality is a product of the welder's skill. Each rod is designed for a different job and the choice of rod determines whether to use AC or DC and how much current.

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