excursion at the factory. people in protection, shoe covers, blue overalls stand and listen to a tour of the metal brewery. people

adult blue brewery care chemical chemist chemistry coat color covers device employee environment equipment excursion factory gas group indoors industrial industry inside inspection interior job lab laborer listen lobnya making manufacture manufacturing metal occupation overalls people phone photograph plant power ppe produce production profession professional protection research safety science shoe stand student technical tour visit visitor warehouse white work worker workman