This Thermal Arc 161S Lift Stick and DC TIG Portable Welder is a heavy-duty inverter welder made in Japan. It is perfect for welding steel materials using the stick welding process. The welder is corded and has a DC polarity. The brand of this welder is Thermal Arc and the model number is W1003603. It is classified as a welder industrial class and is ideal for use in business and industrial settings. This welder is equipped with a range of features that make it easy to use and maintain. If you have any questions about the item, please ask before purchasing.