Broken wire is the iron bright wire, fire wire, galvanized wire, plastic coated wire, paint wire and other metal wire, wire factory according to customer requirements for straightening after sizing cut, has the characteristics of easy transportation, easy to use, widely used in the construction industry, handicrafts, daily civilian and other fields. No limit on length, packing as required. Annealing wire also known as black oiled wire, black annealing wire, fire wire, black iron wire. Compared with cold drawing, black annealed wire is more economical as raw material for nails.

The main difference between the two is the carbon content. The carbon content of iron is 2.11 percent or greater, while the carbon content of steel is 2.11 percent or less. The iron carbon alloy with carbon content above 2.11% is cast iron (pig iron), which is basically not malleable and cannot be drawn into wire. Secondly, the content of impurities is different. The content of harmful impurities such as sulfur and phosphorus in steel is smaller. Steel wire general color focus, iron wire color light point, white point.