... stud link anchor chain1.From dia 6mm to 122mm Grade U2,U3.Or according to the client's ... from 12mm to 122mm)Accessories, mooring equipment, compared with ABS,BV,DNV,LR,GL,Rina,and so on. ... am glad to service for you. 1. MATERIAL GRADE: GRADE 2/U2, GRADE 3/U3 2. Material:20Mn (CM490),30Mn( ... plate. diameter. load of tensile test (kn) load of breaking test (kn) mm grade 2/garde 3 grade2/grade3 proof load ...