... KR,NK, CCS 4 ADVANTAGE:STABLE QUALITY,BEST PRICE Stud Link Anchor ChainMaterials: carbon steelSurface: Black coated, Hot galvanised or Electro galvaPacking ... , Grade 3 with ABS, CCS, NK, BV, KR, DNV, LR certificateWe can also supply studless chain, and other long or short link chain and so ... on.If you have any question, pls send us e-mail,and let us know diameter of anchor chain ...