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This listing is for a USED Lincoln Electric DC‑400 constant current welding power source. The DC‑400 is an industrial welding power supply designed for stick (SMAW), TIG (GTAW), and other constant‑current welding applications. The unit provides stable DC output for production welding environments and is commonly used in fabrication shops and manufacturing facilities. The system shown includes a Lincoln Electric LN‑7 wire feeder mounted on top.
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