舷内机小艇 螺旋桨轴端和桨毂 (GB/T 11699-2008) Small craft with inboard engine-Propeller shaft ends and bosses 代替GB/T 11699-2003,GB/T 19309-2003 发布时间: 2008-03-05 实施时间: 2008-09-01 阅读数量: (130) 标准分类: U 船舶