There are many types of welding, but for wrought iron, you would use either MIG or TIG.

There are multiple types of welding that can be used for wrought iron - gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), shielded metal arc welding (SMAW), and flux-cored arc welding (FCAW). Each type of welding has its own benefits and drawbacks, so it's important to choose the right type of weld for the job. For example, GTAW is a very precise weld with a very small heat affected zone, making it perfect for small, delicate welds. However, GTAW is also one of the most expensive types of welding. GMAW is a much more affordable option, but it can be less precise than GTAW.