Aerospace series - Bolts, T-head, close tolerance, medium thread length, in heat resisting steel FE-PM1708 (FV535), uncoated - Classification: 1000 MPa/550 °C; German and English version EN 3301:2007
航空航天系列.无涂层耐热钢FE-PM1708(FV535)制中等螺纹长度紧公差T形头螺栓.等级:1000 MPa/550°C;德语和英语版本EN 3301:2007