Wooden bellows boards e hammer: o que têm em comum

1. Passo 1. Wooden bellows boards — faz parte de — Fole. Rigid walls.
2. Passo 2. Fole — faz parte de — Forja. Bellows fan the fire of the forge.
3. Passo 3. Forja — é utilizado em — Prensa de forja. The workpiece is heated in a forge before pressing.
4. Passo 4. Prensa de forja — evoluiu de — Steam hammer. Pressing instead of striking.
5. Passo 5. Steam hammer — evoluiu de — Hammer. A steam hammer is a hammer lifted by steam, used to forge huge parts.

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