... :Without heavy metal; 5,Abrasion resistance Ceramic Knife – High Density ZirconiaItem No.: JH3A1-P01, ... knife has sharper than ordinary steel knife. 4,Abrasion resistance:owing to high rigidity,so ceramic knife could endure grinding ... .It is about 60 times vs steel knife,it can ... like Jades.We could apply different knife handles to knife,such as plastic,ebony,ABS.We ...