Metal extraction. In a mobile phone, steel accounts for 54%, copper and aluminum account for 20%, and plastic accounts for 17%. The circuit board also contains precious gold, silver, palladium and other metals. In a ton of circuit boards, 130 kg of copper, 20 kg of tin and 0.45 kg of gold can be separated.
Recycle and refurbish. The major electronic markets in the country, a variety of electronic products, parallel goods, fake products are uneven, many of which are cheap new mobile phones through recycling old mobile phones refurbished. For example, recycle an old mobile phone, put the chip into a new mobile phone, and then brush the system, and then change hands is a new mobile phone.
Second-hand mobile phone market. Recycle old phones, repair and replace parts, and sell them at a slightly higher price.