yea , but there is no guessing .. lots of guessing ,above.

I can tell Zn from stainless by looking at it .. Zn is not going to be shiny by now ,
stainless wire is now dominant in new spokes these days ..



I've helped weld big ingots of Zn cast around a steel flat bar, onto Ships..

it It's done as a sacrificial metal to be a reduction to seawater attacking the steel hull .. itself.