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SKH55高速鋼介紹2020-09-30

SKH55高速鋼介紹 SKH55鋼材一般用途：宜于制造強(qiáng)力切割耐磨，**蘅模，螺絲模，較需韌性及型狀繁雜工具，銑刀、鉆頭等出廠狀態(tài)及硬度（表面）：HB900-1100/HRC63性能：鉬系高碳含鈷超...

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