Leaded Free Cutting Steel的意思|示意

含铅易车钢 主要金属元素之物理性质 Physical properties of major Metal Elements 含铅易车钢 Leaded Free Cutting Steel 金属材料的试验方法 The Method of Metal inspection ..

铅快现 ... Soft free-cutting steel 易切削低碳钢 Leaded Free Cutting Steel 含铅易车钢 ; 铅快现 Sulphuric Free Cutting Steel 含硫易车钢 ...