Galvanizing - black metal surface coating corrosion of zinc coatings electrolytic ally (galvanic ally). Galvanic ally treated metal surface can be the precipitation of the desired coating thickness (between 6 and 18 microns) coated with components which have threads, while the hot-dip galvanizing method is precipitated zinc in a much wider state of preservation impossible to control in thickness.
Zinc coating corrosion resistance complies with ISO 10289 and ISO 9227 requirements.