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Steel frame building under construction against blue sky
Structure of steel for building construction
Steel frame commercial building under construction
New construction site with mechanical equipments, Concrete bridge pillars of the bridge in China high speed train from Bangkok to Nakhon Ratchasima, Train construction industry.
Plan for Thai - Concrete bridge pillars of the bridge in China -High-speed rail infrastructure construct concepts, Construction of a mass transit train line in progress with heavy infrastructure.

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Teamwork in architecture: crossbeams and other supporting elements of multistory, multipane window of contemporary academic buildingImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/teamwork-architecture-crossbeams-supporting-elements-multistory-59988727">Image used under license from Freestock.com</a>
Interdependence in architecture: crossbeams and other supporting elements of multistory, multipane window of contemporary academic buildingImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/interdependence-architecture-crossbeams-supporting-elements-multistory-60132727">Image used under license from Freestock.com</a>
Study in similarity and difference: Detail of fishing pier in Virginia Beach, USAImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/study-similarity-difference-detail-fishing-pier-98775929">Image used under license from Freestock.com</a>

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