Northwestern Inc

Northwestern Inc is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Pipe & Related Products

North American Industry Classification System (NAICS) Categories:

• Metal Service Centers And Other Metal Merchant Wholesalers > Pipe & Related Products > Pipe Flanges & Fittings

Standard Industry Classification (SIC) Categories:

• Metals Service Centers & Offices > Pipe & Related Products > Pipe Flanges & Fittings