Ключевые слова: cellphone, communicate, company, construct, construction, constructor, container, contractor, control, development, employee, employment, engineer, facility, factory, foreman, glove, hardhat, helmet, industry, inspector, job, labor, male, man, manufactory, manufacture, mechanic, multiethnic, occupation, outdoors, pipeline, plant, production, profession, reflective vest, service, steel, storage, supervisor, talk, work, worker, workflow, workman,