... cracks, OLLE ceramic knives’ blades are as white as jade.) 3.Exclusive Processing Technic:OLLE is the only one in China ... let the knife much denser),high temperature sintering,accurate grinding,blade testing,handle injection,sharpness testing,laser engraving,cleaning,pa- ckaging ... to finished products.So our OLLE knives' quality is stable. 3.Cost effective:OLLE’s products are cost-effective, for scale ...