What are Zippo flints made of?

Related questions

1. Can I fly with a lighter?
2. Do Zippo lighters run out?
3. Does Zippo have lifetime warranty?
4. How hot does a Zippo lighter get?
5. Does a Zippo come with Flint?
6. How hot is a spark from flint?
7. How does a flint striker work?
8. Can you fly with matches?
9. Can you fly with Zippo lighter fluid?
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Tags

1. #light
2. #called
3. #holds
4. #hydrocarbon
5. #sometimes
6. #cotton
7. #short
8. #petroleum
9. #cylindrical
10. #naphtha
11. #distillate
12. #fluid
13. #lighter
14. #flint
15. #batting
16. #balls
17. #referred
18. #rayon
19. #contains
20. #synthetic
21. #poured
22. #commonly
23. #absorbs
24. #which
25. #isoparaffinic