... acid,alkali,never rust,health and environmental protection;to keep food colors,natural flavor,enjoy gourmet ... fish,fruits,vegetables and crisp,antibiotic pollution,easy to clean.4. the appearance of noble:jade- ... use wooden or plastic chopping board, cutting boards to avoid the use of stone;* Do not let ... knife away from the fire place too close to avoid plastic deformation of tool holders so. Remarks: ...