Bohler-Uddeholm K990 Knife Steel Composition Analysis Graph And Information Details

オリジナル刃物鋼一覧

Machida Itsushi (Tadashi) comes in Multiplex Layer Takefu V Steel and Multiplex Layer Bohler K990, but the second link I am at awe (does not understand kanji)

Can anyone share some light? Because one day, I might just add a Tadashi..who knows. For now, I just want to see what you guys know. Thanks everyone.