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Engineer under checking the industry chilled water fan coil unit air conditioner is water cooling tower air chiller HVAC system of large industrial building to control air system
Engineer under checking the industry chilled water fan coil unit air conditioner is water cooling tower air chiller HVAC system of large industrial building to control air system
Professional Asian man and woman teamwork engineer in safety uniform working at outdoor construction site rooftop. Industrial technician worker maintenance checking building exterior air HVAC systems.
Structural engineer or architect and foreman worker with blueprints discuss, plan working for the outdoors building construction site. 4K
Young asian worker using machine welding iron with hands working while supervisor examining in industrial factory, welder man or labor welding joint steel while manager checking, industry concept.
Both of construction engineers verify the constructed precast concrete wall slabs' quality. also to oversee significant construction projects in the construction zone
Architects and engineers plan and discuss construction plans at construction site.

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3527191257
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Engineer under checking the industry chilled water fan coil unit air conditioner is water cooling tower air chiller HVAC system of large industrial building to control air system

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