First of all, you have to make sure that the store has credibility. Some of them are from other places, just renting a temporary facade in the local area, nine times out of ten to cheat money; Secondly, whether the cost of the things he brought home to you is greater than the deposit he asked for. If the recycling price of finished products he gives you is higher than the market price, and the price of raw materials is also higher than the market price, the possibility of final recycling is very small, and most of them are selling things instead of recycling finished products. So when you choose, you must make sure that there are many people who have been cheated in this industry. Many people spend money to buy them home, but they can't find anyone when they are done.