Metal mesh tube and gutenberg printing press: what they have in common

1. Step 1. Metal mesh tube — is part of — Stent. An expandable metal mesh.
2. Step 2. Stent — is made of — Stainless steel. Stainless steel or nitinol.
3. Step 3. Stainless steel — is material for — Fountain pen. The nib of a modern fountain pen is stainless steel.
4. Step 4. Fountain pen — uses — Ink. Ink.
5. Step 5. Ink — is used in — Gutenberg printing press. An impression needs ink; Gutenberg used an oil-based one.

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