High purity nitrogen is used in__________________?
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.
A. Making protective gas (95% N2 + 5% H2) for annealing of cold rolled steel strip coils
B. Fire fighting purposes
D. Neither A. nor (B)
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.