... Anchor Chain 1 Grade U2 2 Size 22mm-81mm 3 LR, ABS, DNV, BV, NK, ... GL, RINA,CCS, KR 4 High quality, good service U2 Stud Link Anchor ChainGrade: U2Size: 22mm-81mmSurface: bituminous paintCertificate: LR ... according to your requirment.Specification of Studless Link Anchor Chain: U2 Stud Link Anchor Chain U2 Stud Link Anchor Chain