Mạ hợp kim
| Classify | Product code | Content |
| Black cobalt tin (non-black nickel) |
SC-58 | Rotary plating, hanging plating |
| White tin bronze (non-nickel white) |
VN-870 | Rotary plating, hanging plating |
| White cobalt tin (not white chrome) |
SC-67 | Rotary plating, hanging plating |