RFDT68MJ–Engineer using crane to move industrial gearbox to paint works in engineering factory

RF2JN7DD1–Women engineer at work in constructions with digital tablet, supervising

RFAWRWB4–Man in hard hat using cell phone, close-up, in front of construction sight, b&w

RFCRK149–Worker using walkie talkie on site

RF2JN7DE9–Women engineer at work in constructions with digital tablet, supervising

RFCRK1YT–Worker using walkie talkie on site

RF2JN7DE0–Women engineer at work in constructions with digital tablet, supervising

RF2JN7DDK–Women engineer at work in constructions with digital tablet, supervising