cell phone jammer is based on the advanced foreign technology

 cell phone jammer is based on the advanced foreign technology.
Open before and after the shell will damage the lack of any assembly of components can not be missing any parts assembly prototype hooks, and shell assembly, the parts must be complete, experience tells us: that the parts often less fitted, after that part is a problem. And structure of the assembly not only focus on the assembly structure, the same concern with the structure of the PCBA and connector, and a large, high components. A good approach is in strict accordance with the BOM and assembly diagram to do, so easy to find problems. Measurement and assembly of prototype size you want real-time to make a record, otherwise easily forgotten. Specific assembly and test Table 2-5 phone prototype structure assembly Checklist prototype assembly inspection is not only a product quality inspection.
But in fact due to the impact of the plastic contraction ratio of the difference, the deviation of mold manufacturing, injection molding parameters and other factors, resulting in the next appearance of the size of the inconsistency, that is, before the shell is greater than after the shell. So to stay in the shell before and after four weeks put together at the craft sewing. With the sewing process, the size of the upper and lower shell inconsistency is not easy to be seen. But even so, the size of the upper and lower shell section difference should be less than 0.2 mm, as shown in Figure 2-16 (a). In general, from the point of view of appearance in the mold should be designed so that the size of the product before the shell is greater than the size of the back shell. Before and after the shell before and after the shell assembly connection using a combination of the snap connection and a few screw assembly. cell phone jammer requires a lot towards the safety and confidentiality.
"Made in China have brought huge economic benefits, China's manufacturing industry has been rapid hair, but for a long time" Made in China "to bring" low prices, low-grade impression, so that "Made in China" has become in some countries synonymous with "low-level product". [1] in order to place in a competitive environment, we have to grasp the international division of labor and the world industrial chain, from "Made in China" into "Created in China", China's standing in the forest of the world brand. This article from the status quo of China's mobile phone industry, through the existing mobile phone market surveys, inquiries of the domestic circuit board technology and processing technology to rational analysis, will be produced for a diverse client base with three different types of mobile phones.