... control from steel rod coil, wire drawing, annealing, rust removing, acid washing, boiling, drying, zinc feeding to wire coilingWire diameter of electrogalvanized iron wires ... 5.0mmZinc coating for electrogalvanized iron wires: about 8 to 12gSteel rod coil, wire drawing, wire annealing, rust removing, acid washing, boiling, drying ...