The amount of investment depends on the scale and quality. Tens of thousands of second-hand injection molding machines, a set of molds thousands to tens of thousands.
You can also open a set of molds and then find a factory for injection molding. If there is a market, it is enough to invest at least tens of thousands, and the profit depends on the sales situation.
Advantages and disadvantages of some special mobile phone cases;
Advantages and disadvantages of piano paint
Piano baking paint technology is a kind of baking paint technology, and the technology is very complicated. Mechanized piano painting is still very fast. Some mobile phone manufacturers use piano baking paint technology, and some use ordinary polyurethane paint, which is much worse in technology and durability. Piano baking paint technology gives people a high-grade and gorgeous aesthetic feeling in appearance, which highlights the texture of the mobile phone and brings a good feel. At present, this technology is very mature, but it will fall off or paint off after a long time of use, and it is easy to pollute fingerprints, affecting the beauty of mobile phones, and the wear resistance needs to be improved. Therefore, choosing or giving up depends on the attitude of consumers themselves.
Advantages and disadvantages of folding grinding process
Spray a layer of wear-resistant paint on the original shell, which is both wear-resistant and non-slip, and has a good texture without leaving fingerprints. Spraying wear-resistant and anti-slip matte paint on the mobile phone not only makes it more textured, but also avoids serious wear and tear. Of course, even if there is wear, the background color of most mobile phones is the same as the paint, so it will not be so obvious. However, the only thing that seems a little insufficient about the matte spraying process is that it doesn't look so classy.