Constantan Waya don samfuri mai tsauri shine jan ƙarfe-Nickel alloy yawanci ya ƙunshi ƙarfe 55% da 45% Nickel. Babban fasalin shi shine juriya wanda ya saba sama da yanayin zafi da yawa. Ana kuma kiranta Alloy 294, Nico, MWS-294, Cupony, Cupon 44, Cuni 44, Cuni 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44, CUNI 44.
