What are the majors of senior technicians?

There are many kinds of senior technicians, such as architecture:

1, carpentry (formwork) 2, bricklayer (bricklayer) 3, Plaster workers? 4. Masonry worker 5, building painter 6, waterproof worker 7, rebar worker 8, concrete worker 9, scaffolder 10, measuring unreeling worker 1 1, building material tester 12, concrete product mold worker 13, and engineering installation pliers. Installation electrician) 16, ventilation worker 17, installation rigger 18, furnace builder 19, crane driver 20, tower crane driver 2 1, bulldozer driver 22, excavator driver 23, small and medium-sized construction machinery operator 24, construction machinery. Kloc-0/, road maintenance worker 32, sewer maintenance worker 33, gardener 43, bonsai worker 44, plant protection worker 45, rockery worker 46, ancient bricklayer 47, ancient carpenter 48, ancient stonemason 49, ancient painter 50 and ancient color painter.