This is a Japanese-style 69 layers knife with 34 layers on each side and it uses the newly developed cobalt stainless blade steel “ZA 18” as the main steel. The newly developed ZA18 steel (assumed HRC ± 62) is finished with a Damascus Japanese style kitchen knife. The new steel material ZA18 has high hardness and excellent wear resistance, so it has excellent sharpness and can last long. In addition, it has a high chromium content compared to other blade steels, and is particularly excellent.