Black iron wire has good flexibility and flexibility, and can control its soft and hard degree during annealing. It is made of high quality iron wire and is mainly used in construction industry as binding wire and binding wire. The main thread size is 5#-38 (thread length: 0.17-4.5mm)

trait: softer than ordinary black iron wire, more flexible, even softness, consistent color.

use: mainly used in construction, mining, chemical industry, welding net, welding clothes rack, reprocessing, etc. After annealing, the iron wire becomes soft, the flexibility increases, do the building to tie the wire, bind the steel bar effect is more.

At present, the production of annealed wire and steel wire generally adopts wire drawing process and galvanized treatment. In 1976, guangzhou galvanized iron wire factory firstly applied the new technology of electrolytic pickling, high pressure rinsing and electroless drying in China, and succeeded in continuous production of drawing wire, which changed the drawing process from intermittent production to continuous production, weakened labor intensity and reduced metal consumption. At that time, domestic iron wire factory has been able to produce wire rope, spoke wire, umbrella bone wire, spring wire, bicycle saddle spring wire and other products. In the 1980s, hot - plated low carbon steel wire, fan net wire, carbon structural steel wire, bed wire were also introduced.

Packing:The packaging of black iron wire is the same as that of galvanized wire. It is made of inner plastic outer hemp and inner plastic outer braid.

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