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People who often need to have excavation work performed, such as builders and general contractors, will often hire a professional excavating service. General contractors will often sub-contract excavating work to a professional excavating company because of the specialized equipment and expertise that they usually have in excavation. Excavating contractors will usually have specialized equipment designed for removing rock and earth from a construction site, such as rock trenchers, hoe rams, drill rigs and portable rock crushers.
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