BS EN 4130:2009 航空航天系列.耐高温镀铝IVD钛合金钢中等长度螺纹粗公差标称杆标准六角头螺栓.等级:1100 MPa(环境温度)/425℃
Aerospace series - Bolts, normal hexagonal head, coarse tolerance normal shank, medium length thread, in titanium alloy, aluminium IVD coated - Classification: 1100 MPa (at ambient temperature) / 425 °C