الحصى سحق الآلات. Gravel Wikipedia. A gravel road (technically crushed stone) in Terre Haute, Indiana. Gravel being unloaded from a barge. Gravel /ˈɡrævəl/ is a loose aggregation of rock fragments. Gravel is classified by particle size . National Council for Science and the Environment Archived 8 June 2013 at the Wayback Machine.. Washington DC . الاستشارات; Bauxite ...
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