An adult businessman in a helmet on the head and a constructor in protective clothing discussing the blueprints of the building in order to make amendments, the men are at the construction site
Male and female civil engineers wearing protective vests, googles and hardhats checking projects and office blueprints on construction site
An adult engineer explains to the professional worker a new factory modernization plan that was designed by the architect, people in protective helmets are in an abandoned building that will be
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