... Manufactory 3.Material:mild steel wire 4.Diam:4.5mm BWG 7 black annealed wire are one of our main products, since here ... ,communication devices, medical treatment equipment, weaving of wire mesh, making of brushes, steel rope, filter wire mesh, high pressure pipes, arts and crafts, etc ... .We can produce all kind of black annealed wire,diameter of wire from 5.5mm to 0.5mm,the weight ...