Ключевые слова: 4549 years, builder, business, construction, construction materials, construction worker, contractor, design, digital tablet, fabrication, factory, factory worker, furniture, indoors, industry, instrument of measurement, looking down, male, management, men, mid adult, mobile phone, multiethnic, multiracial person, one person, paper, pencil, plank, project, protective workwear, renovation, safety helmet, saw blade, selective focus, smiling, square shape, table, technology, timber, tools, wood, woodworking, working, workshop, writing,