Clean hand is removing a telecommunication card.
An engineer try to remember the voltage levels in-front of a power panel, one minute, don’t disturb him.
A telecommunication switch worker inspecting Fiberoptic cables in the fiberduct on a ladder platform. He is wearing hardhat and safety glasses. Surrounded by grounding telecom equipment cables.
Man making a call on a rotary telephone dialing the numbers with his finger , high angle view of the instrument on an old wooden surface
Eight years old kid crying while his hands are on his face touching his eyes, something very sad for him
Hardhat worker working or surfing with his laptop, he has a puzzled look, he is wearing red shirt and isolated on white background, copy space on hardhat and laptop