... high hardness,never wear,hardness(HRA87)is second only to diamond,wear a metal knife 60 times;2 ... ,alkali,never rust,health and environmental protection;to keep food colors,natural flavor,enjoy gourmet ... cuisine,do not have any reaction to food,real health products!3. excellent performance ... fish,fruits,vegetables and crisp,antibiotic pollution,easy to clean.4. the appearance of noble:jade- ...