... stud link anchor chain1.From dia 6mm to 122mm Grade U2,U3.Or according to the client's ... require to make.2.Material:Q235,M20Mn,M30Mn2.3.Surface:Self-colored, ... am glad to service for you. 1. MATERIAL GRADE: GRADE 2/U2, GRADE 3/U3 2. Material:20Mn (CM490),30Mn(CM690)3. FLASH ... test (kn) load of breaking test (kn) mm grade 2/garde 3 grade2/grade3 proof load/breaking load proof ...