One is to trade in old appliances for new ones, that is, to buy a new notebook with old appliances for new ones, and you can get a subsidy of 10% of the price of the new notebook. You can buy a new notebook with any old appliances, but there is a subsidy ceiling. I remember that the maximum subsidy for buying a TV is 400, and it seems that the computer is the same. Of course, computers are for computers. If you use other appliances, such as washing machines, it will become 200.