Assembly Line

What are coil springs made of?

Coil springs take steel wire and paint directly. Trace them back and you pass 25 made things on the way to 14 raw materials.

How coil springs are made See it on the map

What goes straight in

From the ground: 14 raw materials

Made along the way: 23 things

Metals 6

Chemicals and fuels 15

Plastics and fibers 1

Electronics 1