Using Cardas 3455R Male/IEC AC plug versus Furutech AC plugs

@auxinput  Thanks for your comment. It seems there are not too many people using Cardas AC plugs.
It seems Cardas uses Beryllium copper +Silver/Rhodium plating. It is clear Beryllium copper as conductor  is not as good as pure copper used in most of Furutech ac plugs. This is my main concern.
There are some physical similarities between Cardas 3455R (made in China) and Furutech Fi-15plus. However, contrary to what people think, Cardas ac plugs are not made by Furutech.

--" Huh, I can’t find reference where Cardas uses beryllium copper. Post a link if you know where that’s stated."

I called Cardas cs and that's what they said: Beryllium copper  is base conductor+Silver/Rhodium.

Beryllium copper or bronze are not bad as conductor but Copper is much better in term of overall quality.

cheers,
M.