Installation of metal supports to protect the walls of the trench. The lining protects the walls from collapsing and save the workers.
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Med | JPG | 1000 x 667px | 300dpi | 1.11 Mb. |
Small | JPG | 500 x 334px | 300dpi | 0.30 Mb. |
Huge | JPG | 4000 x 2667px | 300dpi | 9.86 Mb. |
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