BS EN 3052:2009
航空航天系列.钝化处理的耐热耐蚀钢制短螺纹紧公差标准螺杆标准六角头螺栓.分类:1100 MPa(环境温度)/425℃
Aerospace series - Bolts, normal hexagonal head, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated - Classification: 1100 MPa (at ambient temperature) / 425 °C