Tugboat is a ship used to pull barges and vessels. The characteristics of tugboat are firm structure, good stability, small hull, high power of main engine, large traction force and good maneuverability, but it has no loading and unloading capacity. It mainly tows barges carrying goods and various operating vessels. According to the different use areas, tugboats can be divided into ocean tugboats, inland river tugboats, coastal tugboats, port tugboats, marine rescue tugboats and other types.

The barge itself has no self-propelled capacity and requires a tugboat or a cargo ship towed by a tow. Its characteristics are simple equipment, shallow draft and large cargo capacity. Barges are generally non-motorized vessels, and tugboats or towboats form a barge fleet that can sail in narrow wat

Advantages and Disadvantages of Ro-Ro ships Advantages Like container ships, ro-ro ships have high efficiency of loading and unloading. They load and unload containers by vehicle activities and the capacity reaches 1000~2000 tons per hour.

Zinc-strip anodes in diamond form conform to astm-b418 (type 1/ type 2) and have excellent mechanical properties. Good flexibility, easy installation, easy to make a variety of anode length and shape, such as spiral, disc;

Fireboat is a type of vessel that is a professional vessel for fire fighting and fire fighting work on ships in the port or on shore waterfront buildings.

Oil tanker is a liquid cargo ship carrying bulk oil or refined oil. Broadly speaking, it refers to ships transporting various kinds of oil in bulk. In addition to transporting petroleum, they also transported petroleum products, various kinds of animal and vegetable oils, liquid natural gas and petroleum gas.

Various of Marine Ladders Marine ladder is the passageway facility of the ship, and it can be divided into internal ladder and external ladder.

There are many types of cruise ships, which can be roughly divided into ordinary cruise ships and luxury cruise ships according to internal facilities and decoration grades, and can be divided into ocean-going cruise ships, offshore coastal cruise ships and inland cruise ships according to the

A general cargo ship is a type of dry cargo ship. It mainly packs all kinds of machinery and equipment, building materials and daily necessities into bundles and ships them in boxes. It is the most widely used type of transport vessel.

Self contained compressed air breathing apparatus(SCBA)is an isolated protective breathing equipment ,providing respiratory protection for users working in oxygen deficient environment or the environment with toxic and harmful gases