Hungarian commemorative coins - Cu75Ni4Zn21

Hello all,
So far, 30+ different types of Hungarian forint commemorative coins have the composition of Cu75Ni4Zn21.
This particular alloy has different names in the Numista catalog.
All of them may be correct, but I would like it to be consistent.
What do you suggest?

Hungarian Shepherd & Hunting Dogs
N#179241  Nickel brass (75%copper, 4%nickel, 21%zinc)
N#241924  Nickel brass (CU75 Ni4 Zn21)
N#311900  Nickel brass (Cu75 Ni4 Zn21)
N#350591  Nordic gold (copper (75%) nickel (4%) zinc (21%))
N#380636  Nickel brass (coppe (75%) nickel (4%) zin (21%))
N#500596  Brass (Cu75Ni4Zn21)

Hungarian Folk Tales cartoon series
N#307435  Copper-nickel (Cu75Ni4Zn21)
N#350594  Copper-nickel (Cu75Ni4Zn21)
N#370579  Copper-nickel (Cu75Ni4Zn21)
N#508421  Copper-nickel (Cu75Ni4Zn21)

Hungarian Saints of the House of Árpád
N#108276  Nickel brass
N#159040  Nickel silver
N#324702  Nickel brass (copper (75%), nickel (4%) and zinc (21%))
N#445491  Copper-nickel (Cu75Ni4Zn21)

Medieval Hungarian Gold Florins
N#59229  Copper-nickel (Copper 75% Nickel 4% Zinc 21%)
N#97733  Copper-nickel (Copper (75%) - Nickel (4%) - Zinc (21%))
N#138721  Nickel silver (Cu75 Ni4 Zn21)
N#194792  Nickel brass (copper (75%), nickel (4%) zinc (21%))
N#350589  Nickel silver (CuNiZn (alpakka))
N#444854  Nordic gold (Cu75Ni4Zn21)

Edit

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Classic Children's Literature
N#12899  Brass
N#12898  Brass
N#12897  Brass
N#12896  Brass
N#47971  Nickel brass

/

Other
N#77012  Nickel silver
N#85217  Nickel silver
N#294967  Nickel silver (Cu75 Ni4 Zn21)
N#299270  Nickel silver (CuNiZn (alpakka))
N#444867  Nordic gold (Cu75Ni4Zn21)

What a mess.

- Nordic gold is definitely not correct as it has aluminium in it and no nickel. https://en.wikipedia.org/wiki/Nordic_gold 

- Alpakka and nickel silver are the same thing. It has a different ratio though from the other coins in the list (60%Cu, 20%Ni, 20%Zn) https://en.wikipedia.org/wiki/Nickel_silver 

- The sixth example has a typo in it ('coppe' instead of ‘copper’)

They should all be referred to as nickel brass and keep the compositions.

I am a proponent of elemental symbols as they are one of the few universal things used regardless of the uses script and additional comments are usually not translated.