Which industries are used in prototype model making?

Prototype model making is mainly used in the following industries:

Automobile and motorcycle parts: auto parts, car models, motorcycle parts; such as: car wheels, engines, cylinders, etc.;
Lighting: LED fluorescent lamps, bulbs, street lamps and other lighting product accessories;
Medical equipment: medical equipment spare parts, medical equipment casing; such as: laser beauty instrument, ECG tester, fitness equipment, etc.;
Aerospace and military industry: aircraft spare parts, drone spare parts, rocket spare parts;
Digital home appliances: electrical appliance cases, digital cases, large and small spare parts; such as: TVs, refrigerators, washing machines, monitors, humidifiers, juice machines, vacuum cleaners, remote control panels, etc.;
Mobile phone communications: mobile phone cases, switch cases, router cases, large and small spare parts; such as: mobile phones, routers, switches, etc.;
Electronic instruments: instrument casings, large and small components, such as testers, computer keyboards, amplifiers and speakers, etc.
Mechanical equipment: mechanical casings, mechanical spare parts; such as: hair dryers, cutting machines, cash machines, etc.;
Automated robots: robot casings, large and small spare parts;
Toy animation: cartoon character models, animation peripheral products, miniature car models, model airplanes, etc.
Architectural display: architectural models, concept architecture, exhibition hall layout, display layout.

Craft jewelry: common crafts, ornaments, antique appliances.

In short, prototype models can be applied to almost all industries related to physical product manufacturing.