French Horns
- L’episodio è andato in onda il 10 nov 2010

Aggiungi una trama nella tua linguaAll the tubes and valves are hand-built in the horn factory. Gears and Wiz learn about annealing and how the bell is made on the horn with a lathe and some serious hammering on an anvil.All the tubes and valves are hand-built in the horn factory. Gears and Wiz learn about annealing and how the bell is made on the horn with a lathe and some serious hammering on an anvil.All the tubes and valves are hand-built in the horn factory. Gears and Wiz learn about annealing and how the bell is made on the horn with a lathe and some serious hammering on an anvil.