black iron wire: 1,wire diameter:6#--21# 2,packing:10-100kg/coil 3,usage:binding wire or tie wire 4,material:Q195 1,Black Iron Wire is offered in the form of coil wire, tie wire or cut into straight wire. 2,It is mostly used as binding wire or tie wire. 3,Cut iron wire and U type wire are also available. 4,used for weaving, baling in general,home use and the construction.