Close up face two professionals technicians in hard hat using a large blueprint. Engineers working discussing on ecological station. Wind
Silhouette man engineer in hard hat stand look at camera holds a large blueprint on ecological station in the evening. Wind turbines
The group of architects engineers and workers in hard hat discusses blueprint
Tilt up of professional male and female construction engineers in hard hats discussing blueprints inside unfinished building
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Medium shot of two multiracial male technicians in coveralls and hard hats examining and discussing blueprint while working together at industrial factory
Portrait of an engineer in a hard hat at the production blueprint in hands.
Portrait of an engineer in a hard hat at the production blueprint in hands.
Portrait of an engineer in a hard hat at the production blueprint in hands.
Portrait of an engineer in a hard hat at the production blueprint in hands.
Portrait of an engineer in a hard hat at the production blueprint in hands.
Portrait of an engineer in a hard hat at the production blueprint in hands.
Portrait of an engineer in a hard hat at the production blueprint in hands.