... 2.Approval by marinly Classification Societies 3.China's large marine factory Marine Anchor chain Ship Stud link anchor chain & studless link ... accessories.Applied StandardISO1704-2007, IACS W18 and W22, API-2F(U.S.A), Rules of Classification Societies, GB/T 549- ... CCS(China), DNV(Norway), GL(Germany), KR(Korea), LR(U. K. ), NK(Japan), RINA(Italy), RS(Russia) & Works Certificate Marine Anchor chain