Boat Stud Link Anchor Chain 1 Grade U2/U3 2 Size ... , DNV, BV, NK, GL, RINA,CCS, KR 4 High quality Boat Stud Link Anchor ChainGrade: U2/U3Size: 22mm-71mmSurface: bituminous paintCertificate ... according to your requirment.Specification of Stud Link Anchor Chain:Boat Stud Link Anchor Chain Boat Stud Link Anchor Chain