Zp31 trivalent chromium black passivation
1) trivalent chromium black passivation suitable for alkaline galvanizing process
detail
ZP 31 trivalent chromium black passivation
1) Trivalent chromium black passivation suitable for alkaline galvanizing process
2) Comply with EU ROHS environmental protection standard, suitable for manual and automatic line passivation.
3) After passivation, the appearance is uniform. With appropriate sealing agent, a uniform and bright black passivation layer can be formed
4) The passivation solution has long service life and low operation cost
5) Good corrosion resistance and simple wastewater treatment
