KATSU ZK-T1, 17 Layers ZDP-189 Super Steel Convex Grind Blade。Honouring the ZX Godfathers and celebrating 20 years of Consortium。Meeting of the Rarest Z-Cars – S30.world Japan Expedition 2025。KATSU ZK-T1, 17 Layers ZDP-189 Super Steel Convex Grind Blade。キャラメル