Ключевые слова: 2029 years, 3039 years, building activity, carpenter, carpentry, concentration, construction industry, construction worker, craft, craftsperson, cutting, ear protectors, gun, hobbies, home improvement, machinery, men, nail, occupation, one person, people, plank, pneumatic, power supply, protective eyewear, repairing, selective focus, sharp, timber, wood material, work tool, working, workshop,