Gauze and solar panel: what they have in common

1. Step 1. Gauze — is part of — Bandage. A loosely woven cotton fabric.
2. Step 2. Bandage — is part of — First aid kit. Bandages.
3. Step 3. First aid kit — is made of — Tin. A tin box.
4. Step 4. Tin — is used in — Float glass. Glass spreads out over molten tin.
5. Step 5. Float glass — is material for — Window glass. Float glass.
6. Step 6. Window glass — is part of — Solar panel. Tempered cover glass.

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