The corresponding Chinese terms are Nickel Alloy Fin Plate / Nickel-Based Alloy Fin Plate.

This is a standard term commonly used in technical documents, product descriptions, and quotations, and it is applicable to fields such as heat exchangers and radiators.
For more professional or application-specific expressions, it can be further specified according to the usage scenario, for example:

Nickel Alloy Fin Plate for Heat Exchanger

Corrugated Nickel Alloy Fin Plate

Nickel-Based Superalloy Fin Plate