Surface Coatings:

Zinc, Clear and Yellow passivation
Zinc Nickel (ES313)
Zinc Flake
Cadmium
Phosphate
Hot Dip Galvanising
Nickel
Sheradizing
PTFE (Xylan / Sermagard)
Sheraplex
Silver Plating
Copper Plating
Pickle & Passivate
Anodising

Heat Treatments:

Harden & Temper
Temper
Stress Relieve
Solution Annealing
Nitriding
Case Hardening
Age / Precipitation Hardening
Normalising
Thru Hardening