Machine Shops, Industrial Valve Manufacturing, Fluid Power Valve and Hose Fitting Manufacturing, Other Metal Valve and Pipe Fitting Manufacturing, Mining Machinery and Equipment Manufacturing

Dimension Stone Mining and Quarrying, Crushed and Broken Limestone Mining and Quarrying, Crushed and Broken Granite Mining and Quarrying, Other Crushed and Broken Stone Mining and Quarrying, Construction Sand and Gravel Mining

Oil and Gas Pipeline and Related Structures Construction, Other Heavy and Civil Engineering Construction, Structural Steel and Precast Concrete Contractors, Prefabricated Metal Building and Component Manufacturing, Fabricated Structural Metal Manufacturing

Oil and Gas Pipeline and Related Structures Construction, Secondary Smelting and Alloying of Aluminum, Aluminum Sheet, Plate, and Foil Manufacturing, Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)

TRIODETIC