Electro galvanized wire ,black iron wire

Electro galvanizing processing: Oil and rust removing- washing- electro galvanizing-drying- Put them on the pot and make coils.

Chose needed cold drawing steel wire and low carbon wire ( Iron wire), acid picking and rust removing, drawing and forming, high temperature annealing, vacuum high temperature annealing and other process. The production speed is low, uniform galvanizing coating and bright appearance. The thickness is thin, usually only 3-15microns,  so has poor corrosion resistance, usually a few months will be rust. Compared with hot dipped galvanized wire, the electro one has low production cost.