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China promotional black tie wire 0.8mm Black Annealed Binding Wire
Black iron wire has good elasticity and flexibility, can control its hardness in the annealing process, made of high quality black annealed binding tie wire, mainly used for binding wire and binding wire in the construction industry. Process: rolling the hot metal billet into 6.5mm thick steel bar is the wire rod, and then put it into the wire drawing device to draw into different diameter lines, and gradually reduce the aperture of the wire drawing disk, cooling, annealing, coating and other processing technology into a variety of different specifications of tie wire
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