In the standard classification, chargers involve IT terminals and other peripheral devices, motorcycles and motorcycles, handheld tools, household product safety, equipment for disabled personnel, batteries and batteries, other household and commercial equipment, nuclear energy engineering, rectifiers, converters, regulated power sources, household electrical equipment integration, electromagnetic compatibility (EMC), agricultural buildings, structures and devices, interior decoration, electrical and electronic testing, fire protection Road vehicle installations, trams, audio, video and audio-visual engineering, ground service and maintenance equipment, rotating electrical machines, information technology applications, components and accessories for telecommunications equipment, electrical engineering integration, acoustics and acoustic measurements, telecommunications terminal equipment, power station integration, electrical equipment and systems for aerospace, electromechanical components, structural and structural components for electronic telecommunications equipment, railway engineering materials and parts, aircraft and spacecraft integration Freight transportation, household, commercial, and industrial heating appliances, radiation measurement In the Chinese standard classification, chargers involve computer peripherals, bicycles, electric tools, others, communication power supply equipment, health, safety, labor protection, radiation protection instruments, power supply equipment, communication network performance indicators and testing, basic standards and general methods for household appliances, energy storage devices, chemical power supplies, electronics, electrical equipment, livestock, poultry machinery and equipment, broadcasting Television transmission and reception equipment, household cleaning, cosmetic appliances, fire monitoring, alarm and fire dispatch systems, medical equipment integration, public medical equipment, reactors, nuclear power plant safety distribution equipment, airport ground service systems and equipment, basic standards and general methods, metrology integration, trolleybuses, rotating electrical machinery integration, trolleybuses and other vehicle integration, new energy vehicles and other types of vehicles Firefighting equipment and equipment, basic standards and general methods, mobile communication equipment, nuclear reactors and nuclear island equipment, agricultural machinery, household electric heating appliances, noise and vibration testing methods, power integration, automation devices for power plant equipment, energy equipment for spacecraft, extracorporeal circulation, artificial organs, prosthetic devices, electrical systems and equipment, electrical insulation materials and products, mechanical accessories, components, power integration General components, other specialized equipment, power systems, containers, pallets, shelves, fasteners, nuclear instrument and detector integration, general nuclear instruments, semiconductor rectifier devices, power semiconductor devices, components, exploration, mining, and process monitoring nuclear instruments