Logic

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

• Smelters & Refiners Precious Metals

North American Industry Classification System (NAICS) Categories:

• Primary Smelting And Refining Of Nonferrous Metal (Except Copper And Aluminum)

Standard Industry Classification (SIC) Categories:

• Primary Smelting And Refining Of Nonferrous Metals, Except Copper And Aluminum > Smelters & Refiners Precious Metals