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

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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Senior engineer man or technician use mobile phone to contact his team and stay on rooftop of construction site.

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

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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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Senior engineer man stand in front of line of air vents and also using building drawing to finish his work in construct…

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

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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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Industrial engineer work on site. engineer visit and inspection site engineer at industrial site. Inspector engineer ch…

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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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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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Two engineer discuss about project on building plan or drawing and stay near air vents of construction site.

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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