I-Zund blade Z31 yenziwe nge-ultra-fine tungsten steel powder. Insimbi ye-Tungsten (i-hard alloy) inochungechunge lwezakhiwo ezinhle kakhulu njengokuqina okuphezulu, ukumelana nokugqoka, amandla nokuqina, ukumelana nokushisa nokumelana nokugqwala, ikakhulukazi ubulukhuni bayo obuphezulu nokumelana nokugqoka. I-Carbide isetshenziswa kabanzi njengezinto ezisetshenziswayo, njengamathuluzi okujika, izisiki zokugaya, amapulani, izinsimbi, amathuluzi ayisicefe, njll., Ijubane lokusika lama-carbide anosimende amasha manje seliphindwe kangamakhulu ambalwa kune-carbon steel.