SIC 3271 Concrete Block and Brick
Encyclopedia of American Industries › Stone, Clay, Glass, and Concrete Products (2009)
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SIC 3271 Concrete Block and Brick
SIC 3271
This category covers establishments engaged in manufacturing concrete building block and brick from a combination of cement and aggregate. Contractors engaged in concrete construction work are classified in the construction segment (see Vol. 2, Chap...See the full content of this document
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