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Concrete Aggregate Quarries In Canada Firms

Concrete aggregate quarries in canada firms concrete aggregate quarries in canada firms sic 1442 construction sand and gravel reference for business of the remainder, 45 percent was used as aggregate in concrete 22 percent for irms were forced to cover to bring sand and gravel from their quarries to the end illion tons of construction sand in 1997, primarily to mexico and canada.

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