What acid is used for etching metal?

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Tags

1. #choose
2. #certain
3. #steel
4. #chloride
5. #nitric
6. #sulfuric
7. #include
8. #sulfate
9. #etching
10. #fecl3
11. #copper
12. #h2so4
13. #muriatic
14. #acids
15. #water
16. #chemicals
17. #ferric
18. #possible
19. #cuso4
20. #hydrochloric