... wire,low carbon steel ,galvanized(electro and hot -dipped) 2 large quantity in stock,fast delivery. ZRHH Black iron U type wire ... Specification: 0.6-5.0mm Length:250-3000mm Type :u type wire Material:SS, galvanized, pvc,black iron wireU typed wireMaterial ... galvanizing. Black iron wire is a kind of hard drawn carbon steel wire, suitable for weaving, fencing, galvanizing or tying applications ...