Kayan aikin da aka rufawa suna cikin ƙarfi mai kyau da tauri carbide ko ƙarfe mai saurin gudu (
Ceramics, lu'u-lu'u da kuma cubic boron nitride kayan da suka fi ƙarfin gaske kamar ruwan wukake na iya kuma)
A saman, ta amfani da hanyar tururi jijiya shafi wani Layer na lalacewa-resistant karfe refractory ko nonmetal fili da shiri.
Ruitai Kitchen Knives: Babban Tushenku don Saitin Wuƙaƙen Kayan Wuka na Musamman daga China
Harshe
