The transportation mode of most of the world's goods import and export, with the advantages of high efficiency, safety, modular operation, etc., gradually replaces the previous bulk carrier transportation mode, one of the most representative of the transition from extensive to intensive.

Warehousing and logistics means the use of self-built or leased warehouses, sites, storage, storage, loading and unloading, and delivery of goods. The traditional definition of warehousing is given from the perspective of material reserves. Modern “warehousing” is not a “warehouse” or “warehouse management” in the traditional sense, but a warehousing in the context of economic globalization and supply chain integration, and is a warehousing in the modern logistics system.

A special ship is a ship that has a variety of functions. Broadly speaking, ships that can ship more than two types of cargo can be called multi-purpose vessels. However, the multi-purpose vessel generally referred to is specifically a multi-purpose dry cargo ship. There are many varieties of dry goods, which can be classified into five categories according to their requirements for ship performance and equipment, namely, groceries, bulk cargo, containers, major parts and roll-on goods. Therefore, the goal of multi-purpose vessels is to carry these five types of goods efficiently.

The OOG is a special special container for the special cabinet. The speciality is reflected in the function of refrigerating [REEFER CONTAINER (RF)] and the connection of ultra-high cargo [OPEN-TOP CONTAINER (OT)" Open top cabinet] function, connect ultra-wide and ultra-high cargo [PLAT FORM BASED CONTAINER] function, connect live animals [PEN CONTAINER] function, connect various liquids [tank CONTAINER, TK )] The function, the vehicle (CAR CONTAINER) function, the clothing (hanging box) function. People generally call any of the above cabinets as special cabinets.