Specification for the marking of hatchway beams
舱口横梁标记规范
发布日期:
1967-12-29
指示舱口所在甲板、横梁所属舱口以及横梁在舱口中的位置所需的标记。
Markings required to indicate the deck in which a hatchway is situated, the hatchway to which the beam belongs, and the position of the beam in the hatchway.