The toughest sandwich on earth!! San Mai by Cold Steel!

San mai is a Japanese term referring to a layered steel construction technique used in knife and sword making. It involves forging a blade with a hard, high-carbon steel core (hagane) sandwiched between two layers of softer, more flexible steel (jigane or kawagane). This combination provides both excellent edge retention and durability.

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Видео The toughest sandwich on earth!! San Mai by Cold Steel! канала Cold Steel