... , 2) Material: Alloy steel 3) Finish: Black tar Painted stud link mooring link chains 1) Grade U2,U3, ORQ, RQ3, RQ4, 2 ... ) Material: Alloy steel 3) Finish: Black tar Paintedstud link mooring link chains1) Grade U2,U3, ORQ, RQ3, RQ4,2) Material ...