 |
 |
|
Copper-Nickel Plate |
Copper-Nickel Ring |
Material Brand：
Material:CuNi90/10
Material:CuNi70/30
|
|
|
|
Copper-Nickel Plate |
Copper-Nickel Ring |
Material Brand：
Material:CuNi90/10
Material:CuNi70/30