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constrution sand manufacturing machinery

20201017ensp enspConstruction Machinery INDUSTRIAL CODES NAICS 333120 Construction Machinery Manufacturing SIC 3531 Construction Machinery NAICSBased Product Codes 3331201 3331208 333120Y 3331209 and 333120W PRODUCT OVERVIEW Tools used in construction include hand tools powered by human muscles alone such as hammers and shovels handheld power tools such