Stent and gutenberg printing press: what they have in common

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

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