... , without any galvanizing.black iron wire is a kind of hard drawn carbon steel wire, suitable for weaving, fencing, ... 6.Material:The main wire material of Black Iron Wire is carbon steel wire.7.Surface Treatment:The surface treatment of Black Iron Wire is plain oil ... wire, spool wire, U type wire, Tie wire,Straight cut wire, etc. 10.Application:Black Iron Wire is a kind of hard drawn carbon steel wire ...