Greasy hands of a mechanic tightening a bolt on an engine block, vivid oil stains on worn gloves, detailed wrench in hand, industrial garage background
Maintenance engineer working with gas boiler of heating system equipment in a boiler room
Young engineer holding helmet safety and blueprints working with gas boiler of heating system equipment in a boiler room
Industrial work. Priming of metal products from the compressor gun. A worker in overalls and a respirator paints the body of a truck trailer