National Welding Supplies sells sockets and plugs that can be outfitted to any electrical appliance and workshop. Of course, make sure to use a qualified technician for the installation who is aware of the technical details. Sometimes welding machines don’t come with plugs and National Welding Supplies can install the appropriate plug on request. A common situation is that a workshop doesn’t have the right socket for the welding machine. In that case a qualified electrician will need to install it.