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1. The tip of the spot welding head is separated, also called ordinary spot welding head, and the tip has an elastic contact surface to form ohmic contact; 2. The middle gap is between 0.05mm and 0.10mm; 3. It is easy to oxidize and has a lower high-temperature hardness than tungsten. It is suitable for ordinary spot welding heads such as flat and round shapes. It is easy to deform when making special-shaped spot welding heads;
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