庄闲下三路图解下载简介：As the name suggests, the so-called iron-head ship is an icebreaker with a bow wrapped in iron sheets. However, the bottom of the bow is not the usual round shape, but a cone shape, as if an iron cone is placed under the bow.
As the name suggests, the so-called iron-head ship is an icebreaker with a bow wrapped in iron sheets. However, the bottom of the bow is not the usual round shape, but a cone shape, as if an iron cone is placed under the bow.
