Checking the joint accuracy and structure integrity between No. 8 and No. 9 block after closed. No.

Where exposed to view, the temporary filling used for erection to be neatly removed, damages to the base material to be repaired by welding and grinding.

Traditionally, the integral casted stern post is positioned according to engine′s axes after completing subassembly on the berth. This technology is executed difficultly and needs large berth period.