... super after-saling service. welcome your enquery. Product : oxigen free black annealed wire0.5-6.0mmtensile range 300-400 MPa Items: Packing ... quantityPayment: 30% advanced, 70% after B/L copy. 1, material: Q195.2, Chemical analysis %% C 0.06-0.12 Si≤0 ... ≤0.303, Tensile strength: 380-500N/mm24 , Surface: black shiny, mooth, no dot. no joint, one point. good looking. oxigen free black annealed wire