AECMA PREN 3388-1990
航空航天系列.内部保留单线圈轴向安装钢制磷酸盐化.P1版
Aerospace Series Fasteners, Externally Threaded, in Heat Resisting Nickel Base Alloy NI - P100HT (Inconel 718) Classification: 1275 MPa/650 Degrees Celsius Manufacturing Method Optional Technical Specification Issue P 1