标准号:NF L24-212-1993
英文标准名称:Aerospace series. Bolts, double hexagon head, relieved shank, long thread, in heat resisting steel Fe-Pa92HT (A286) silver plated. Classification : 900 MPa (at ambiant temperature)/650 degrees Celsius.
标准状态:W
标准类型:国际标准
国际标准分类号:49.030.20