1. Network equipment: including switches, routers, firewalls, servers, minicomputers, disk drives, etc.
2. Communication equipment: exchange room, transmission room, base station equipment, data equipment, etc.
3. Power equipment: refers to primary equipment and secondary equipment. Including power plants, substations, transmission lines, power grids, general enterprise distribution rooms, etc. The main cleaning objects are generators, motors, insulators, power distribution cabinets, lightning arresters, CT, PT, switches, circuit breakers, transformers, high and low voltage power distribution cabinets, etc.
Precision instruments: automatic control equipment, electronic medical equipment, imaging equipment, etc.