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鉗口優(yōu)質碳鋼鍛壓，表面鈍化處理，齒部高頻，齒部硬度 55-60HRC， 球墨鑄鐵柄，把柄頭部雙側帶三角眉。
Mobile jaw drop forged with high quality carbon steel, heat treatment with quench and tempering, hardness of teeth is 55-60HRC, handle, globular graphite cast iron, with triangle browns both sides.
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