Application: Offshore mooring chains have 5 grades: R3, R3S, R4, R4S, R5, among which the Grade R3 and R3S mooring chains are mainly used for marine continental shelf development facilities, while the R4 class chains are mainly used for deep-sea development facilities. Offshore mooring chains have the features of high strength, good toughness, seawater corrosion resistance, fatigue resistance, wear resistance and other properties. Our company is a professional marine anchor chains and mooring chains supplier. We supply both standard and customized products to meet our customer's different needs. If you're interested in our products, please do not hesitate to contact us. We're looking forward to your inquiry.