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Multifunctional butt welding machine, butt welding machine, has many products that can be butted. Some people named it after its partial welding function, such as iron wire and steel bar butt welding machine, stainless steel wire butt welding machine, and disc circular butt welding machine.Copper wire and copper rod butt welding machine, aluminum wire and aluminum rod butt welding machine, pipe butt welding machine, etc. There are many, many more. In fact, according to the book, its formal names are also many: