关于davit的百科

• boat davit造句怎么写

• Rescueboatdavit(liferaftdavit)tobedonestatic(dynamic)loadingtest.Decksundermachinery,bollards,boatdavitandotherheavyconcentratedloadstobereinforcedbycarlingorweldeddoublerwherenecessaryasapprovedbyClass.Technicalrequirementforlifeboatdavitinstallatio...
• 2018-04-2614803