Kettle grill bowl and electric motor: what they have in common

1. Step 1. Kettle grill bowl — is part of — Grill. A container for coals.
2. Step 2. Grill — uses — Charcoal. Charcoal.
3. Step 3. Charcoal — is used in — Blast furnace. Before coke, blast furnaces ran on charcoal.
4. Step 4. Blast furnace — is part of — Steel works. Blast furnaces.
5. Step 5. Steel works — has part — Rolling mill. Rolling mills.
6. Step 6. Rolling mill — has part — Electric motor. The drive.

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