Two engineer man as young and senior worker talk and discuss during walk along air vent line on rooftop of construction…

Close up scene with two engineers or technicians talk together and stay on rooftop of construction site.

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Two engineers or technician man discuss together using building plan or drawing and they also stay on rooftop area of c…

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Young engineer point his hand to the front and explain to senior coworker and they also stay near line of air vents at …

sritanan DP-601207862

Two technician or professional engineers express happiness during work together on rooftop of construction site.

sritanan DP-601208016

Close up scene with two engineers or technicians talk together and stay on rooftop of construction site.

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Young engineer shake hands with senior coworker and stay in front of line of air vent in construction site to express s…

sritanan DP-601209616

Senior engineer and young worker shake hands and look at camera and senior man also show thumbs up for successful of th…

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Senior engineer man stand with action of thinking and work with young technician with stand in front of air vent line i…

sritanan DP-601208398

Wide shot of two engineers or technician man discuss together using building plan or drawing and they also stay on roof…

sritanan DP-601213680

Two technician or professional engineers express happiness during work together on rooftop of construction site.

sritanan DP-601209840

Close up shot young and senior engineer man work together using building plan or drawing in workplace of construction s…

sritanan DP-601206066

Wide shot of two engineer or technician worker shake hands together for successful of project and they stay on rooftop …

sritanan DP-601206000