![Seamless-background-animation-of-stacked-steel-reinforcing-rods-used-in-the-construction-industry-as-a-framework-to-strengthen-concrete-within-a-building-during-erection-of-the-structure.](https://videocdn.cdnpk.net/videos/e9ab7dd6-6ba7-5dc7-9f56-e5277ffd6d74/horizontal/thumbnails/small.jpg)
Seamless background animation of stacked steel reinforcing rods used in the construction industry as a framework to strengthen concrete within a building during erection of the structure.
1080p 00:12
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