What's new is the composite front bulkhead and rear chassis plate.
有什么新内容，是综合前面的舱壁和后方的机箱钢板。
2
The frame number marks, made of steel plate shall be welded and painted on the hatch coaming and bulwark at the place of every 10 frame-space and at every bulkhead.
每隔10档肋位和每一舱壁处要用钢板割的肋位标记焊接到舱口围和舷墙上。
3
It is suitable to inner bottom plate, all decks, platform plate , longitudinal and transverse bulkhead, trunk bulkhead and jointed plate of straight shell plate.