Maintenance of the printing machine. Oiling and lubricating the machine.
Repair man fixing and cleaning air conditioner unit. Technician cleaning coil cooler of air conditioner by water for clean a dust on the wall in customer home when maintenance service.
Rust removing from colorful red and green steel metal plate using wire brush, closeup of workers hand with tool
Industrial worker cutting stainless steel in metal factory. Worker cutting stainless steel at building construction site. Industrial and Building construction concept.
Soft Focus to Technician use a vacuum and brush to clean air ducts.