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  • 0512-66159259

    日本大同NAK80/NAK55

    日本大同NAK80/NAK55(高鏡面模具鋼):

    NAK55:易切削型40HRC級預硬鋼

    NAK80:高鏡面型40HRC級預硬鋼


     
     
     

    国产麻豆剧传媒精品国产AV