During the laying of paving blocks, the worker checks with a protractor, the correctness of the workmanship.

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The paving contractor will put a protractor between the paving stones and the sidewalk edging to see if it maintains a 90-degree angle.

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Size: 6720px × 4480px
Location: Poland
Photo credit: © Fotodrobik / Alamy / Afripics
License: Royalty Free
Model Released: No

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