Coining (die stamping) and freezer: what they have in common

1. Step 1. Coining (die stamping) — is used in — Coin. The image is applied with a blow of a die.
2. Step 2. Coin — is made of — Silver. Silver coins.
3. Step 3. Silver — is material for — Mirror. A silver coating.
4. Step 4. Mirror — is part of — Vacuum flask. The silvering reflects heat radiation.
5. Step 5. Vacuum flask — uses — Thermal insulation. Insulation.
6. Step 6. Thermal insulation — is part of — Freezer. Polyurethane foam in the walls.

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