What are PCB made of?

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Tags

1. #devices
2. #sides
3. #fiber
4. #substrate
5. #boards
6. #printed
7. #electrical
8. #circuit
9. #epoxy
10. #resin
11. #household
12. #bonded
13. #glass
14. #paper
15. #often
16. #expensive
17. #phenolic
18. #commonly
19. #fiberglass
20. #copper
21. #reinforced