Threaded bottle neck e rock drill: o que têm em comum

1. Passo 1. Threaded bottle neck — faz parte de — Plastic bottle. A thread for the cap.
2. Passo 2. Plastic bottle — utiliza — Injection moulding. Preforms are moulded and then blown.
3. Passo 3. Injection moulding — utiliza — Hydraulics (Pascal’s law). Hydraulic presses.
4. Passo 4. Hydraulics (Pascal’s law) — é utilizado em — Shock absorber. Oil flows through valves, damping oscillations.
5. Passo 5. Shock absorber — tem como parte — Piston. Inside, a piston moves in oil.
6. Passo 6. Piston — faz parte de — Rock drill. A percussion piston.

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