National Road Utility

National Road Utility is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Culverts
• Pipe
• Valves & Fittings

North American Industry Classification System (NAICS) Categories:

• Highway, Street, And Bridge Construction > Tunneling Contractors > Culverts
• Metal Service Centers And Other Metal Merchant Wholesalers > Pipe & Related Products > Pipes Wholesale
• Industrial Supplies Merchant Wholesalers > Valves, Fittings & Gears > Valves & Fittings

Standard Industry Classification (SIC) Categories:

• Bridge, Tunnel, And Elevated Highway Construction > Tunneling Contractors > Culverts
• Metals Service Centers & Offices > Pipe & Related Products > Pipes Wholesale
• Industrial Supplies > Valves, Fittings & Gears > Valves & Fittings