The current process of metal horn mesh on 3203l rear shell is anode black, but it is difficult to cover the defects of raw materials. Moreover, the color difference between the metal horn mesh and the plastic back shell is obvious. In order to make the color of metal horn mesh closer to the plastic back shell and reduce the defect rate of metal horn mesh, it is suggested to change the anode black to baking black to confirm whether it is OK!<br>
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