LR, ABS, DNV, BV, NK, GL, RINA,CCS, KR Stud Link ... 2 Size 22mm-71mm 3 High quality and good service LR, ABS, DNV, BV, NK, GL, RINA,CCS, KR Stud ... Link Anchor ChainGrade: U2/U3Size: 22mm-71mmSurface: bituminous paintCertificate: LR, ABS, DNV, BV, NK, GL, RINA,CCS, KR other ... according to your requirment. Specification of Stud Link Anchor Chain: LR, ABS, DNV, BV, NK, GL, RINA,CCS, KR Stud ...