this is a demo of a chinese OTC inverter welding rig, doing two operations (with no setup change) at the same time, with the double trigger/crater fill function. Adaptive pulse, .035 ms wire, 90/10 gas, 20.0V 373IPM-low/1st. 21.5V
around 400IPM on the secound trigger pull. the deposites on the surface stem from environmentally friendly lubricants on the part.
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