Dufferin Aggregates: Home. to supply crushed stone, sand and gravel, recycled crushed concrete as well as . We are a member of CRH plc, a global building materials company with a.recycled crushed company,Home of Southern Crushed Concrete: Texas Owned Since 1991SCC Material uses practical & inexpensive methods to produce recycled . Southern Crushed Concrete (SCC) is a Texas-owned company established in 1991.
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