Senior engineer man look to drawing plan and discuss with young foreman or technician during work at construction site.

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

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

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

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

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Senior technician point over and explain to young engineer who hold building plan or drawing at construction site workp…

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

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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 …

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

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

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

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Young engineer man use walkie talkie to contact with his team and stand beside senior coworker who hold building plan o…

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