Neoprene and liquid-propellant rocket engine: what they have in common

1. Step 1. Neoprene — is a kind of — Synthetic rubber. A synthetic rubber.
2. Step 2. Synthetic rubber — is material for — Pneumatic tyre. Modern tyres are mostly synthetic rubber.
3. Step 3. Pneumatic tyre — is part of — Landing gear. Aircraft tyres.
4. Step 4. Landing gear — is part of — Lunar module. Legs.
5. Step 5. Lunar module — has part — Liquid-propellant rocket engine. A descent engine.

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