Bright construction set standing in front of pupils
Girl helping her classmate constructing a robot
Enthusiastic schoolboy building figures with construction set
Pupil grabbing construction set details before bulding
Big drum at construction site
Boy and girl looking for details before building
Two classmates making copies of famous buildings model
Teacher and his pupil polishing up a robot
Happy boy attending his school science class
Yellow and blue heavy machinery in the factory
Concentrated schoolboy turning on a helicopter model
Cross harbor bridge under construction
Asphalt paving. Paver machine and workers. New road construction.
During construction of house, portable plastic bio toilet cabins stalls are located on a
worker man on a construction site shouts while holding a rainbow lgbt pride flag.
Drone view of ship in the Adriatic Sea during the construction of dam in the Lustica Bay, Montenegro
Tseung Kwan O, Hong Kong 21 December 2020: Cross harbor bridge under construction
Tseung Kwan O, Hong Kong 21 December 2020: Cross harbor highway under construction
Tseung Kwan O, Hong Kong 21 December 2020: Cross harbor bridge under construction
Tseung Kwan O, Hong Kong 21 December 2020: Cross harbor bridge under construction
Tseung Kwan O, Hong Kong 21 December 2020: Cross harbor bridge under construction
Tseung Kwan O, Hong Kong 21 December 2020: Cross harbor highway under construction
Construcion worker showing thumbs up sign
Architect working on blueprints on her table
Person assembling slot car
Coloured primary colored lights red blue and green on a textured concrete wall as background stage p
