... : U1, U2, U3 2. Type: Open and Stud 3. Certificates:CCS, ABS, etc. u3 and u2 marine anchor chain Originally studs were added ... your requestWe can also provide grade 1, 2 and 3 stud & open link chain; marine anchor: Hall anchor, Japan Stockless Anchor, U ... .N Stockless Anchor and other marine castings, like Panama Chock, Fairlead Roller, and so on. With ISO: 9001 Quality Management System, SMC can offer ...