Plaster cast and hydraulic press: what they have in common

1. Step 1. Plaster cast — is made of — Lime. Plaster of Paris is calcium sulfate.
2. Step 2. Lime — includes — Chalk. Chalk is calcium carbonate, like limestone.
3. Step 3. Chalk — is material for — Tablet (medicine). Tablet fillers are chalk and starch.
4. Step 4. Tablet (medicine) — uses — Hydraulic press. Tablets are pressed.

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