... approved:ABS.DNV,LR,GL NK CCS certificate,etc... Marine Stud Link Anchor Chain: 1. Standard length is 27.5m per piece ... , or according to your requirement3. Grade : U2&U3 stud link anchor chains4. Surface treatment: self color, black painted, zinc galvanized, hot ... . The tension breaking load conforms to National Standard.6. Studless anchor chains. Specification: 12.5-140mm, mainly adapt to vessels, ...