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PCE
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DIFF Subgroup
C21C 5/527

Full Title

Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel > Manufacture of steel in electric furnaces (; electric heating per se H05B)

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.