Alloy steel via heat treatment, grinding blade, enable to keep sharp edge and high precision.
合金钢材质经热处理，研磨修边刀，刀口锋利，精密度高。
Clean the shave after each use to keep the cutting edge sharp.
每次使用完后要清理电动剃须刀以保持刃口锋利。
Sharp blade key: hand must keep horizontal motion, force must be uniform and owner. on back must be straight or round straight, nearly edge department can not have a little hunchback.
刀刃锋利的关键所在：手必须保持水平运动，力必须均匀，刀背必须保持平直或圆直，近刃口部不得有一点驼背。
Thin edge(about 1mm thickness)slitting with automatic and manual grindstone grinding to keep edge sharp and make slit paper smooth and tidy.
采用薄刀分切（厚度仅为1毫米）、设有自动、手动砂轮磨削，保持刀刃锋利，使分切的纸板平滑整齐；
Similar hardness and white fused alumina, white fused alumina than in the high toughness, abrasive cutting edge sharp edges and corners to keep good, high durability.
与棕，白刚玉相比硬度高，韧性大，呈单颗粒球状晶体，具有良好的多棱切削刃，抗破碎较强。
Similar hardness and white fused alumina, white fused alumina than in the high toughness, abrasive cutting edge sharp edges and corners to keep good, high durability.
与棕，白刚玉相比硬度高，韧性大，呈单颗粒球状晶体，具有良好的多棱切削刃，抗破碎较强。
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