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

The yacht is an advanced durable product for water entertainment. It integrates navigation, sports, entertainment, leisure and other functions together to meet the needs of individuals and families to enjoy their life. As the world developing, yachts will become the next generation of durable consumer goods into the home, just like cars.

The speedboat is the "sprint champion" in the ship, with a maximum speed of 40-60 knots, and is known as the "light cavalry at sea." Speedboats are classified according to equipped weapons, including torpedo boats, missile boats and missile torpedo boats. Although the speedboat is small, its power i