National Oilwell Varco

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

• Castings
• Oil Field Equipment & Supplies

North American Industry Classification System (NAICS) Categories:

• Metal Service Centers And Other Metal Merchant Wholesalers > Iron & Steel (Ferrous) Products > Castings
• Industrial Machinery And Equipment Merchant Wholesalers > Petroleum Industry Machinery > Oil Field Equipment & Supplies

Standard Industry Classification (SIC) Categories:

• Metals Service Centers & Offices > Iron & Steel (Ferrous) Products > Castings
• Industrial Machinery & Equipment > Petroleum Industry Machinery > Oil Field Equipment & Supplies