... (nail wire) black annealed wire Surface: black annealed Wire diameter: bwg8-bwg22 Tensile strength: 300-400N/mm2 Black Wire(nail wire)Black ... of wire.Black annealed wirematerial:Q195,Q235Surface: black annealedWire diameter: bwg8-bwg22Tensile strength: 300-400N/mm2Usage: Building wire,Industry,Agriculture,Aquaculture ...