Marine anchor: 1.Material: Steel ZG200-400 2.Weight: 50KGS-30000KGS 3.Certification : CCS, LR,GL,KR,BV U.S. navy stockless anchor: Material: Steel ZG200-400Weight: 50KGS-30000KGSCertification : CCS, LR,GL,KR,BVPacking:Nude packingDelivery time:20-40 days after receipt of your confirm order