DIN EN ISO 7236-2016 船舶和海洋技术.内河航行船舶.顶推船舶可卸信号桅杆用安装附件(ISO 7236-2014).德文版本EN ISO 7236-2016
Ships and marine technology - Inland navigation vessels - Mounting attachments for demountable signal masts for push-tows (ISO 7236:2014); German version EN ISO 7236:2016