Portable charger shell articles

1, mobile power shell:
Portable charger shell made ??of plastic, aluminum, stainless steel, etc., more recently, wooden, but the market is relatively rare, probably some artists like to buy it.
Shell surface treatment process: Plastic is the material for processing, spraying, electroplating, UV; hardware can fuel injection, oxidation, electroplating, sandblasting, art is not the same, the cost is not required, these reaction to price, so sometimes the same parameters, different due to the housing prices can be a difference of 10 yuan; here we can see one of the factors the shell also affect price, but it's not much.

2, mobile power adapter cable adapter
Buy portable mobile usb charger with adapter cable, do not look at just a line, there are still articles, the most common is the price of the cable, the same cable, some cable a few cents 1 meter, some cable a few meters truth because the line material, thickness, length, currently on the market the following materials:
Copper clad iron: the internal resistance of the hard line, outside the circle shiny copper, the inner diameter of the black iron, cheap.
The large rigid cheaper of the internal resistance of the copper-clad steel
Soft pure copper, impedance, good electrical conductivity, a little expensive;
Joint surface material of the points of the nickel-plated, silver-plated;
Adapter structure covered from top to bottom structure, easy to assemble, inexpensive, it is easily broken; unibody structure, injection molding production efficiency is low, costs are high, but strong, difficult to damage.
 
In general, you get what you pay for cheap cheap shortcomings, you have your truth, inexpensive exist only in legend, it is unrealistic to want businesses lose money buy. And