road construction workers' teamwork, tarmac laying works at a road construction site, hot asphalt gravel leveled by workers

transportation infrastructure construction togetherness engineering cooperation development electrician horizontal installing occupation efficiency profession protection renovation technician expertise machinery teamwork creating labourer driveway employee engineer mechanic security concrete workers asphalt leveled service working highway repairs shaking vehicle builder concept machine tarmac laying gravel collar safety street paving works heavy large road site team work dirt hot men job