... to dia. 152mmStud link anchor chain and studless link anchor chain BUOY CHAINS, STUDLESS ANCHOR CHAINSHigh Qualtiy Anchor Chains with accessories. Grade ... : AM2 and AM3 anchor chain for ship use; ORQ, R3, R3s, and R4 offshore mooring chains and their accessories ... 4.) Approval certificate: ABS, BV, CCS, CR, DNV, GL, IRS, KR, LR, RINA, RMRSAnchor chainGrade 3 anchor ...