Angioplasty and kiln: what they have in common

1. Step 1. Angioplasty — is used in — Stent. It is placed during angioplasty.
2. Step 2. Stent — is made of — Stainless steel. Stainless steel or nitinol.
3. Step 3. Stainless steel — is material for — Saucepan. Stainless steel.
4. Step 4. Saucepan — evolved from — Pottery. The first pots were ceramic.
5. Step 5. Pottery — uses — Kiln. Firing in a kiln makes clay strong.

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