航空工业标准《过盈螺纹》和《修理用过盈螺纹》审查会于1990年12月8日至11日在北京召开。与会代表一致认为:该标准积极 采用了国际通用的米制普通螺纹公差制,增加了钢对钛 Aviation industry standards “interference thread” and “interference thread repair” review December 8, 1990 to December 11 in Beijing. Delegates agreed that: This standard actively adopts the common metric system of metric thread tolerances, an increase of steel on the titanium