Corrugated steel walls and conveyor belt: what they have in common

1. Step 1. Corrugated steel walls — is part of — Shipping container. Steel panels.
2. Step 2. Shipping container — works like — Pallet. Standardizing units of cargo.
3. Step 3. Pallet — is used in — Forklift. It works with pallets.
4. Step 4. Forklift — has part — Hydraulic cylinder. Lifting the forks.
5. Step 5. Hydraulic cylinder — is part of — Tunnel boring machine. Hydraulic cylinders push the machine forward.
6. Step 6. Tunnel boring machine — has part — Conveyor belt. Spoil is removed by a conveyor.

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