North American Product Classification System (NAPCS) Canada 2017 Version 2.0
- 681 - Manufacturing services
- 68141 - Custom manufacturing services (except printing, finishing of textiles and metals)
- 681415 - Metal processing and metalworking services (except heat treating, coating, plating, and similar processing)
- 6814151 - Smelting and refining services
- 6814152 - Steel conversion services
- 6814153 - Drawing, redrawing, and insulating wire
- 6814154 - Other metal processing services
- 6814155 - Machine shop services
- 6814156 - Other metalworking services
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