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Nov 22, 2018· download full and complete project topic and materials on the construction and fabrication of a metal bookshelf. ... next design and fabrication of a pilot production plant for paints ... design of melon de-husking and separation machine. design of melon de-husking and separation machine format: ms word document pages: 70 price: n
Construction aggregate, or simply "aggregate", is a broad category of coarse particulate material used in construction, including sand, gravel, crushed stone, slag, and recycled concrete. Aggregates are a component of composite materials such as concrete and asphalt concrete; the aggregate serves as reinforcement to add strength to the overall ...
The global construction aggregates market is mainly driven by the infrastructure development activities in the particular region. As the various governments are emphasising to improve the infrastructure and public utilities, it is estimated to create highly attractive market conditions for the construction aggregates market players.
Question: What are the new North American Industrial Classification System (NAICS) codes for aggregates and concrete construction businesses? Answer: The U.S. Bureau of the Census recently published a new coding system for business activity that replaces the 1987 four-digit SIC code system. (See table). Under the old system, aggregate businesses were coded with 1422.
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