... u3 and u2 marine anchor chain 1.Material: U1, U2, U3 2. Type: Open and Stud 3. Certificates:CCS, ... ABS, etc. u3 and u2 marine anchor chain Originally studs were ... also provide grade 1, 2 and 3 stud & open link chain; marine anchor: Hall anchor, Japan Stockless ... Anchor, U.S.N Stockless Anchor and other marine castings, like Panama Chock, Fairlead Roller, and ...