? 刀頭55# 碳鋼或60Cr-V ? 整體熱處理, 硬度42–48HRC ? 刃口感應(yīng)淬火, 硬度55-61HRC ? 采用復(fù)合杠桿設(shè)計, 提供了更大的杠桿作用和切削力
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