Protective gas used in the annealing furnace for steel coil comprises of?

95% N₂ + 5% H₂
5% H₂ + 9% N₂
100% CO
100 %H₂

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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