Acceptance criteria: <br>A, plating scratch / mar allowed to expose the nickel; <br>B, such as visual places no deep scratches (nail feeling) when the discriminated A controversial;
The criteria for admission: <br>A, coating scratches/scratches are not allowed to reveal the nickel layer;<br>B, such as visual A in dispute to no depth scratches (with nail sense) to distinguish;
Acceptance criteria:<br>A. nickel layer is not allowed to be exposed due to coating scratch / scratch;<br>B. In case of dispute on visual a, it shall be judged by no deep scratch (with fingernail sense);<br>