Glassblowing pipe and tank: what they have in common

1. Step 1. Glassblowing pipe — is part of — Glassblowing. A hollow tube about a metre long.
2. Step 2. Glassblowing — is used in — Glass bottle. Blowing.
3. Step 3. Glass bottle — has part — Cork. A cork.
4. Step 4. Cork — uses — Elasticity. The elasticity of cork.
5. Step 5. Elasticity — is used in — Torsion bar suspension. It works in torsion.
6. Step 6. Torsion bar suspension — is part of — Tank. The road wheels of many tanks are sprung on torsion bars.

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