iron wire black wire annealing wire fire wire africa hot selling factory straight hair quality assurance 铁丝 黑铁丝 退火丝 火烧丝 非洲热销 工厂直发 质量保证

Black wire is produced by rolling hot metal billets into 6.5 mm thick steel bars, also known as wire rods. These are then placed in a drawing device to be drawn into wires of various diameters. The diameter of the drawing rod is gradually reduced, followed by cooling, annealing, plating, and other processing steps to create wires of different specifications. Its composition includes iron, cobalt, nickel, copper, carbon, zinc, and other elements. Key features of black wire include excellent elasticity and flexibility. Its hardness can be controlled during annealing. Made from high-quality wire, it is primarily used in the construction industry as binding wire and tie wires. The wire sizes range from 5# to 38# (wire diameter between 0.7–4.5 mm).

(t_BLACK WIRE)


(5 small rolls bundled into one large roll)


(A large quantity of ready-to-pack items)


(<t_UNKNOWN> Black wire for shipment )


(<t_WARE_COLLECTION>)

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