Activated carbon and rolling mill: what they have in common

1. Step 1. Activated carbon — is a kind of — Carbon. Porous carbon.
2. Step 2. Carbon — is material for — Coke. Coke is almost pure carbon: everything else is baked out of the coal.
3. Step 3. Coke — is used in — Steel works. The steel works’ blast furnaces run on coke.
4. Step 4. Steel works — has part — Rolling mill. Rolling mills.

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