The product range applicable to this rule is welding power supplies powered by low voltage or driven by machinery and power supplies and auxiliary equipment used in similar processes, including small AC arc welding machines, AC arc welding machines, DC arc welding machines, and TIG arc welding machines. , MIG/MAG arc welding machine, submerged arc welding machine, plasma arc welding machine, plasma arc cutting machine, multi-function arc welding machine (multiple welding process combinations), resistance welding machine, arc welding transformer anti-shock device, welding cable coupling Devices, welding machine wire feeding devices, welding torches (guns), and welding clamps.