Welders play a very important role mainly in industry. For example: construction, mechanical equipment, shipbuilding, motor vehicles, bridges, aircraft manufacturing, steel structure, pipeline production and installation, etc. In short, industrial development is inseparable from welders, and social progress is inseparable from welders. I am also a welder, and I am very proud of myself. I have welded automobiles, ships, bridges, steel structures, buildings, thermal power plants, nuclear power plants, cement plants, sugar factories and so on in this field from cutting to welding. Welding metals include copper, iron, aluminum, stainless steel, alloy steel, etc.
Most welders in China have a heavy workload, such as shipbuilding, bridges welded by hand a few years ago, and covered electrode in the Atlantic Ocean. Even if you work ten hours a day, you can still eat well physically. You can gradually phase out manual welding, use sulfur dioxide completely, and move a bottle of oxygen with a weight of 1 kg, which is very heavy in machinery. Flux-cored solid-core welding wire is 3 or 4 kilograms, which is burned on the springboard most of the time, and the flat welding is comfortable and vertical.