It is about where the customer will use cell phone jammer

PC-GF10 PC-GF15 PC-GF20, the PC-GF30, high mechanical properties, heat resistance and dimensional stability, it can be replaced by the degree of commercial electrical internal aluminum, lead or other metal stamping casting . The use of this material is more significant is the FUJITSU PC-the GF20 this material are used in many models, and the whole shell. Indeed, I've seen a variety of notebook PC-GF-# material feels like metal, whether from the surface or from the feeling of touch. If not the identity of the inner surface, a single from the outer surface is not very careful to observe all thought would be a metal alloy. From a practical point of view, its thermal performance is also good, very uniform heat dispersion. 
Distinguish basic voice sound can be ceded to the PC + BAS, PC, or magnesium alloy, titanium composite gold, more effective methods is to use small metal objects, such as single copper or aluminum key (best choice) lightly tap the shell, if it is PC + ABS or PC, the sound sink some, if it is aluminum alloy sound was very crisp, and tap the edge of time, there will be obvious metal sound of the collision. In addition, with your fingers to gently tap the aluminum alloy and the PC + ABS, and the PC-the GF are also differences, aluminum finger tapping, can feel the subtle finger Fan Chongji feel, and if it is PC + ABS or PC , felt that some flexibility.
But the use of magnesium alloy module is placed in the gap between the edge or component inside the heat dispersion  cell phone signal jammer . This classification can only put more a lot of attention to rely on your usual accumulation will be very easy to find some rules, then encounter no matter what kind of book you can without looking at the first touch to know what the material. Is always on a strange road, watching strange scenery and listening to strange music, and then in a casual moment, you will find original scheming want to forget things really so forget the mobile communication products has always been a very hot topic, not only from generation to generation update rapidly and are becoming increasingly complex functions, seems to have a "mobile computer" posture   cellular phone jammer
The iPhone integrates high-end hardware, efficient operating system (WM platform and Microsoft), a powerful video and 3D capabilities, as well as an unprecedented multi-touch user interface, and because the iPhone a powerful multimedia capabilities dwarfs and visual interface to Microsoft's WM platform (Microsoft platform for mobile phone manufacturers also blame a lack of visual developers, and procrastination on the interface), not only with the huge sales success, but also contributed to the WM platform multimedia video playback capability, the side of the consumers began to demand up, mobile phone manufacturers when only conform with the trend, have been widely integrated with higher-order video acceleration or even 3D acceleration core application processor  phone jammer store , and user interface make a big fuss.