... LFGB test 3,We have ceramic ceramics product Specificationsceramic knives set ceramics product 4-PCS Ceramic knife set Size:1PC 6.5 ... : 1.Blade made from advanced nano-grade zirconia,high-tech product;2.Hardness is HRC90, only secondly to the diamond ,super ... -sharp edge.2.Wearability is 60 times as much as metal knife ,wear-resistance.3.Anti-corresion,never rust ,keep food ...