Oxide layer formed on the non-ferrous metal surface after its annealing is?

Removed by acid pickling
Hammered into the surface
Removed with coarse emery cloth
Left as such to protect the surface

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Answer: Option 1

4 views Answered 2022-09-01 13:21

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