| B | Sektion B — Arbeitsverfahren; Transportieren | SECTION B — PERFORMING OPERATIONS; TRANSPORTING | |
 | B22 | Gießerei; Pulvermetallurgie | CASTING; POWDER METALLURGY |
| B22C | Gießformen (Formen von hitzebeständigem Material allgemein B28B) | FOUNDRY MOULDING (moulding refractory materials in general B28B) |