Product Description 1. Variety: Grade1, Grade 2,Grade 3,ORQ,R3,R3S,R4 stud link anchor chain; studless anchor chain; buoy chain,D-type anchor shackle; Hatch-cover chain,lifting chain,kiln chain and others; DIN Standard chain; Special chain as per your requirments and their accessories. 2. MATERIAL GRADE: ANCHOR CHAIN:GRADE 2/U2, GRADE 3/U3, MOORING CHAIN:ORQ,R3,R3S       3.Material:20Mn (CM490),30Mn(CM690) 4.Length: 25m or 27.5m or as per your request. 5. FLASH BUT WELED 6.Surface: Self Color, Black Painted, Hot Dip Galvanized 7.Relevant Certificates: ABS, BV, CCS, DNV, KR, LR, GL, NK and RINA etc. 8.  Grade U2 / U3 from 12.5mm to 162mm; Grade ORQ / R3 /R3S / R4 from 58mm to 162mm 9.  accessories: kenter shackle, joining shackle. anchor shackle,pear type joining shackle                              buoy shackle type A, Swivel shackle                              pear type link, trangle plate. 10.Difference between Stud link chain and studless chain: Originally studs were added to the chain to stiffen the links preventing them from severely deforming when overloaded. They have the added advantage in that they prevent the chain from knotting up when twisted, thus avoiding problems when chain is retrieved with a windlass. 11.Packing: Wire Rope Bundled, Ton Bag, Wooden Box, as required Using range:a.Marine chain b.Fishing &boat chain;c.Mine chain;d.Cement lifting round chain. 12. Shipping port: Qingdao port/Shanghai port