Sometimes when I pick up my phone and see the small screws that are exposed at the edge, will it be emotional: How does the appearance of this screw look so good? It shines like a mobile phone case, and when you rotate the phone, you can see the light reflected from the phone's screws.
This is mainly due to the credit card screw of the mobile phone. Because the head of the CD-shaped screw is bright and can reflect different light, the screws used in mobile phones or electronic products are all such CD-shaped screws. Because only it can be exposed without affecting the overall effect of the phone. So are all CD-like screws so bright? Of course, it is not. When the production process of the CD-pattern screw manufacturer is not correct, the effect of the CD-shaped screw will not be satisfactory when the material selection is wrong.
Therefore, to produce a high-quality CD-shaped screw, not only must be selected properly, but also need to have a superb technical level, not only the head of the CD-shaped screw, the diameter, length, tolerance, etc. of the CD-shaped screw need to be strictly controlled. . After all, using it on the mobile phone, which part of the link has made some mistakes, the impact is not only a problem with a mobile phone.