If you choose trivalent chromium passivation, the price is 20-50 US dollars more expensive than hexavalent chromium passivation.
Film Or Not Film
The surface of the galvanized coil can be covered with plastic film to better protect the surface spangle. Protect surfaces from scratches during transport, shingling or reworking. The film is easy to tear off after finishing processing.
We have films in several thicknesses, 40/50/70/80 microns. Not only applied to galvanizing, but also applied to color-coated coils. The price increases in steps, with an average increase of 10-20 US dollars per ton.
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