Marine Anchor Chains Grade U2 and U3 stud and stud-less link anchor chains from size 12.5mm to 152mm. Marine Anchor ChainsMooring chains ORQ,R3,R3s and R4 with diameters ranging from 12.5mm to 152mm.Following certificates can be supplied: CCS, LR, GL, ABS, DNV, BV,RS,RINA,KR.etc.Accessories can be supplied such as kenter shackles, swivels, anchor shackle D type, etc. Marine Boat Anchor Chains