Black annealed iron wire Wire dia: bwg8 to bwg24 Packing: plastic inside and weave outside, plastic inside and gunny outside. Black annealed iron wireWire dia: bwg8 to bwg24Packing: plastic inside and weave outside, plastic inside and gunny outside. In spool or coil.Sanlin produces good quality black iron wire for customers.Black annealed wire also called black wire, comes in the form of coil ...