... link & studless link anchor chain 2.Approval by marinly Classification Societies 3.China's large marine factory Marine Anchor chain Ship ... and W22, API-2F(U.S.A), Rules of Classification Societies, GB/T 549-1996(China) and other non-standard products ... in order to satisfy customers.Approved SocietiesApprovalby 11 international Classification Societies, such as ABS, BV, CCS, CR, DNV, GL, KR, LR ...