Black iron wire has good elasticity and flexibility, which can control its hardness during annealingThe construction industryA bundle ofBinding wireAnd the cable tie. Silk sizes are mainly 5#-38#(silk warp 0.17-4.5mm).

It is softer and more flexible than ordinary black wire, with even softness and consistent chroma.

Mainly used in construction, mining, chemical industry, welding mesh, welding hanger, reprocessing and so on. After annealing, the steel wire becomes soft, and the flexibility increases, so the effect of building binding wire and binding steel bar is more.

At present,Annealed wireAnd steel wire production is widely usedWire drawing processAnd galvanized. Guangzhou, 1976Galvanized iron wireThe factory first applied the new technology of electrolysis pickling, high pressure washing and electric drying to successfully test the wire-drawing lineContinuous production, so that the drawing process from intermittent production into continuous production, reduce labor intensity, reduce the metal consumption. By then, domestic wire mills were producing steel wire ropes, spokes,umbrellaSteel wire,Spring steel wireBicycle saddle spring steel wire and other products. In the 1980s, hot-plated low carbon steel wire for stapling, fan wire, carbon structural steel wire, bed steel wire and so on were also introduced.

The packing of black iron wire is same as the packing of zinc-plated wire, cent inside model outside hemp, inside model outside plait, reach first with a thin layer thin plastic twine silk, reapply hemp bag or it is to weave bag to twine its!