trade school

3. a driver licensed to operate vehicles classified as commercial vehicles
6. a person who makes and repairs locks.
8. a person who welds metal.
13. a person who installs and repairs the pipes and fittings of water supply, sanitation, or heating systems.
15. allied healthcare professional who specializes in the use of ultrasonic imaging devices to produce diagnostic images, scans, videos or three-dimensional volumes of anatomy and diagnostic data
16. A truck driver is a person who earns a living as the driver of a truck, which is commonly defined as a large goods vehicle or heavy goods vehicle.
17. who services and repairs automobiles, sometimes specializing in one or more automobile brands or sometimes working with any brand
18. a trade specialist who works on systems and equipment designed by engineers, sometimes directly supporting engineers. Mechanical technicians can sometimes be referred to as mechanical engineering technicians.
19. the ground-based personnel and equipment concerned with monitoring and controlling air traffic within a particular area.

1. heating, ventilation, and air conditioning. It refers to the systems that regulate and move heated and cooled air throughout residential and commercial buildings, from homes to offices to indoor stadiums
2. a person who installs and maintains electrical equipment.
3. health professional that deal with the circulatory system
4. a builder and worker in stone.
5. the surgical opening or puncture of a vein in order to withdraw blood or introduce a fluid, or (historically) as part of the procedure of letting blood.
7. someone who constructs, modernizes, repairs or services conveyances. Typically, elevator mechanics work on elevators, escalators, dumbwaiters, wheelchair lifts, moving walkways and other equipment providing vertical transportation.
9. a professional operator of a film camera or video camera as part of a film crew.
10. ensure that construction meets local and national building codes and ordinances, zoning regulations, and contract specifications.
11. a person trained in subsidiary legal matters but not fully qualified as a lawyer.
12. specialize in magnetic resonance imaging scanners
14. performs pharmacy-related functions. Training, certification, licensing, and actual practice of pharmacy technicians varies not only worldwide but in some countries regionally as well as by employer.