... conevnient.Available Size: 3", 4", 5", 6", 7", 1#cut knife, 2#cut knife, 3#cut knife, and ... Kitchen Knives property: ItemUnitInspection ResltsCompositionwt%94.8%ZrO² 5.2%Y²O³Specific Densityg/cm³6. ... /m.k320 to 400°c 9.6Fracture ToughnessMPam½8Grain Sizeum<6Characteristic:1: Ceramic Knife has a ... with intelligentized and multi-functional plants, R & D center and garden-style living quarters for employees. ...