... .Diam:4.5mm BWG 7 black annealed wire are one of our main products, since here is more than 20 years ... flexibility and softness.Application: Binding of construction,communication devices, medical treatment equipment, weaving of wire mesh, making of brushes, steel rope, filter wire ... can produce all kind of black annealed wire,diameter of wire from 5.5mm to 0.5mm,the weight of roll from 500kg to ...