Hook tape and paper machine: what they have in common

1. Step 1. Hook tape — is part of — Hook-and-loop fastener. Stiff hooks.
2. Step 2. Hook-and-loop fastener — works like — Zip. An alternative fastener.
3. Step 3. Zip — is part of — Bag. A zip.
4. Step 4. Bag — is made of — Leather. Leather.
5. Step 5. Leather — is material for — Conveyor belt. The first belts were leather.
6. Step 6. Conveyor belt — works like — Paper machine. Fourdrinier’s endless wire mesh moves like a conveyor belt, forming the web of paper.

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