
• Cementation
• Nitriding
• Carburizing
• Annealing

• Galvanizing on hooks and in barrels (Fe/Zn)
• Zinc-nickel plating (Fe/ZnNi)
• Nickel plating (Fe/Ni)
• Tin plating (Fe/Sn, Fe/CuSn)
• Passivation (thick-layer, blue)
• Other

• Polishing (trowalizing)
• Engraving
• Bluing
• Assembly