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

• Pipe
• Pipe Distributors
• Waterworks Equipment & Supplies

North American Industry Classification System (NAICS) Categories:

• Metal Service Centers And Other Metal Merchant Wholesalers > Pipe & Related Products > Pipes Wholesale
• Metal Service Centers And Other Metal Merchant Wholesalers > Pipe & Related Products > Pipe Distributors
• Plumbing And Heating Equipment And Supplies (Hydronics) Merchant Wholesalers > Plumbing Fixtures & Fittings

Standard Industry Classification (SIC) Categories:

• Metals Service Centers & Offices > Pipe & Related Products > Pipes Wholesale
• Metals Service Centers & Offices > Pipe & Related Products > Pipe Distributors
• Plumbing And Heating Equipment And Supplies (Hydronics) > Plumbing & Hydronic Heating Supplies, Nec > Water Works Equipment & Supplies Wholesale