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The lesson is devoted to the topic of semi-automatic welding with self-shielded flux-cored wire (NO GAS). In the video: What is "flux-cored wire"? Pros and cons of working with flux-cored wire. Preparation for welding: changing polarity when working with flux-cored wire. Feed roller and clamping force. Tip and nozzle for working with flux-cored wire. Setting up the OVERMAN device (welding voltage and feed speed) for flux-cored wire. Setting up the SPEEDWAY 175 for welding with NO GAS flux-cored wire. Technical characteristics and cost of the devices: Overman 160 http://aurora-online.ru/catalog/weldi... Overman 180 http://aurora-online.ru/catalog/weldi... Overman 200 http://aurora-online.ru/catalog/weldi... Speedway 175 http://aurora-online.ru/catalog/weldi...