For semi-submersible drilling platforms, floating production and storage tankers and other offshore development facilities, Marine mooring chain products are required to not only have high strength and toughness, but also have seawater corrosion resistance, fatigue resistance, wear resistance and other properties of the mooring chain steel due to long-term immersion in sea water. Stud mooring chains have been used for MODUS and FPSOS moorings in shallower waters. It has proven to be powerful, reliable and relatively easy to handle. The rung provides stable connections between links and ease of hoisting.