Passenger and roller vessels are mainly used for carrying passengers, goods and vehicles, etc., and are mostly used for inland ferries and medium and short distance sea transportation...
A ship that carries goods and people for commercial purposes. Ocean-going merchant ships mainly include bulk carriers, dry cargo ships, container ships, oil tankers, LNG carriers and so on...
Scientific research ship refers to the ship used for the investigation and study of Marine geology, hydrology, biology and meteorology and other special tasks...
Official vessels mainly refer to administrative law enforcement vessels used to safeguard national sovereignty and maritime rights, as well as maritime patrol...
