chrome-nickel

I think you must have this fine-gauge chrome-nickel.' '

Nichrome (NiCr, nickel-chrome, chrome-nickel, etc.) generally refers to any alloy of nickel, chromium, and often iron and/or other elements or substances.

The trigger guard is made of a special alloy of anodised ergal 55 aluminium, while the trigger mechanism is made from molybdenum chrome-nickel, heat treated and chromed.