Before revision: In Japan, traditionally the steel used for the outer layer is Gukunan-tetsu Murray Carter "Bladesmithing with Murray Carter: Modern Application of Traditional Techniques" Krause Publications, 22 Sep. 2011 The technique has been used outside Japan in modern knife making in the United States, often with new types of materials, including D-2 and carbon fibre .Morey J.
After revision: In Japan, traditionally the steel used for the outer layer is Gukunan-tetsu Murray Carter "Bladesmithing with Murray Carter: Modern Application of Traditional Techniques" Krause Publications, 22 Sep. 2011 The technique has been used outside Japan in modern knife making in the United States, often with new types of materials, including D2 tool steel and carbon fiber .Morey J.