Researchers spent three years developing the Zafirro Iridium, which has a handle made of 99.9 per cent pure iridium - the most corrosion-resistant platinum metal, found only in meteorites.

I plant of the chromium oxide, alumina ceramic coating and has a tungsten carbide metal-resistant coating wear, corrosion resistance, high temperature, and other fine performance.

Based on EDS and SEM analysis of metal corrosion surface, the course of contact corrosion between aluminum alloy, structural steel and basaltic microfiber heat-resistant materials were proposed.