Assembly Line

What are eyeglass frames made of?

Eyeglass frames take 10 things directly, among them plastic, cellulose acetate, pigment, acetone, nickel and solder. Trace them back and you pass 53 made things on the way to 25 raw materials.

How eyeglass frames are made See it on the map

What goes straight in

From the ground: 25 raw materials

Made along the way: 43 things

Metals 11

Chemicals and fuels 25

Plastics and fibers 2

Glass, stone and ceramics 1

Wood and paper 1

Electronics 1

Food 2