In-house sharpened knives Vol.2 (8)

The problem with the new "LI", whose finish was not stable, gradually became clear as we made hypotheses and repeated various experiments.

自社で研いだ包丁 第二弾 (8)

仕上がりが安定しなかった新商品LI（エルアイ）の問題ですが、仮説を立てて色々な実験を繰り返すに従い、少しずつ原因が分かってきました。