North American Industry Classification System (NAICS) 1997
- 31-33 - Manufacturing
- 315 - Clothing Manufacturing
- 3151 - Clothing Knitting Mills
- 31511 - Hosiery and Sock Mills
- 315110 - Hosiery and Sock Mills
- 31519 - Other Clothing Knitting Mills
- 315190 - Other Clothing Knitting Mills
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