Nickel-Copper-Nickel (Ni-Cu-Ni)
Double Nickel (Ni-Ni)
Zinc (Zn)
Epoxy
Color Zinc
Golden (Au)
Copper (Cu)
Silver (Ag)
PTFE (Teflon)
Phosphate & Passivation
Parylene
Titanium (Ti-Tin)
Chrome (Cr)
No-coated
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