Wooden bellows boards e windlass: o que têm em comum

1. Passo 1. Wooden bellows boards — faz parte de — Fole. Rigid walls.
2. Passo 2. Fole — faz parte de — Alto-forno. Air was blown in by bellows, later by blowers.
3. Passo 3. Alto-forno — é feito de — Stone. The shaft of a blast furnace is stone.
4. Passo 4. Stone — é material para — Well. The walls of wells were lined with stone.
5. Passo 5. Well — utiliza — Windlass. The bucket was raised with a windlass.

Abrir Evothings