The casings of many electronic products are made of ABS plastic materials or metal plates.
It is usually produced from raw materials, and then customized in a variety of different colors, shapes, hole design, logo silk screen, etc.
However, there are also special requirements for the outer casing of the product design. For example, the light-transparent and light-transmissive parts do not see the inner parts of the plastic box. This requires special ABS materials to be tested several times to meet customer requirements.
It is easy to make all transparent products, but to achieve the effect of being able to transmit light and hide internal parts, multiple tests are required.
Following is the picture of different effects: