On 6^th Dec, 2022, two units of 3,680kw ASD tugboats built for Zhoushan Port and named "ZHOU GANG TUO 46" and "ZHOU GANG TUO 47" have been delivered.

        The vessel has length oa of 39.9m, length bp of 37.6m, breadth of 10.6m, depth of 4.9m, BP ahead of 63.8t, BP astern of 56.8t, endurance of 1,100nm and speed of 13.30kn. It also is equipped with FIFI-1 capacity of 2,800m³/h.