... anchor chain BUOY CHAINS, STUDLESS ANCHOR CHAINSHigh Qualtiy Anchor Chains with accessories. Grade 2, Grade 3 available. C/W assorted class certificate ... . 1.) Anchor chain and accessories 2.) Size from dia. 10mm to dia. 152mm 3.) Category ... ; ORQ, R3, R3s, and R4 offshore mooring chains and their accessories 4.) Approval certificate: ABS, BV, CCS, CR, DNV, GL, ...