1. ‌ISO container‌: ISO container is a standard container developed by the International Organization for Standardization (ISO) and is widely used in sea, land and rail transportation around the world. Its design focuses on salt corrosion resistance and strong waterproof performance to adapt to the marine environment. ISO containers usually have corner fittings installed at the four corners for easy lifting and fixing, and are sealed to prevent moisture and damage to the cargo‌.

2. ‌DNV offshore container‌: DNV offshore container is a special container designed for offshore engineering, mainly used for the transportation and installation of ships and offshore equipment. Its design standards are more stringent, especially in the design and installation of pressure and temperature control systems. DNV offshore containers may also contain new qualifiers and symbols to adapt to specific transportation needs, such as no hatch symbol and additional fire safety classification symbol.