Rolex's all-gold Daytona watch costs even a bit more than the Rolex Day-Date "President" watch - probably because of its more complex movement. Still, in the scheme of gold watches, the replica tag heuer is a "decent value" compared to many other offerings in the luxury watch market.

Mechanical

Air Conditioning, BMS controls industrial and process services, plant and machinery installation, ventilation, air treatment, Etc

Electrical

Power distribution systems, lighting, generating plant, fire detection system and alarm system, small power and control systems.
Data and Structured dresses cabling installation, Communication systems and Industrial process services.

Plumbing

Cold and hot water, drainage, fire protection, gas, plumbing and sanitation, rainwater, sewage treatment and swimming pools.

Building Maintenance Unit