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    On Jan 20^th,2020,the 4400HP ASD Tug,which is built for Zhangjiagang Port and named “ZhangGang 28”, is sailing smoothly.
    The vessel has length of 35m, breadth of 10m, depth of 4.5m, power of 4400HP. It has capacity of pull ahead of 51.8t, pull astern of 48.9t, endurance of 1000nm and speed of 14.05kn.