What is HASL finish?

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Tags

1. #knives
2. #circuit
3. #copper
4. #passing
5. #finish
6. #printed
7. #between
8. #surfaces
9. #dipped
10. #removed
11. #exposed
12. #molten
13. #typically
14. #boards
15. #leveling
16. #solder
17. #covered
18. #excess