... :ABS.DNV,LR,GL NK CCS certificate,etc... Marine Stud Link Anchor Chain: 1. Standard length is 27.5m per piece ... , generally including G30/G40/G60/G70/G80 , or according to your requirement3. Grade : U2&U3 stud link anchor chains4. Surface treatment: self ... ,LR,BV,NK,GL,DNV,RS,IRS,CCS; Specifications:Common Link Enlarged LinkD shackle connection:Kenter Shackle connection:Production Flow: Certifications ...