Shanghai Lugong postal currency card market and Beijing Madian postal currency card market. The collections purchased by Postal Savings Bank can be sold in Lugong postal currency card market and Madian postal currency card market respectively. These two markets are the largest collectibles trading markets in China. Find businesses related to their collections in the market for consultation and trading. All have business licenses and related business licenses, which are safe and reliable. In addition, all provincial capitals or big cities have relevant trading markets, but we should keep our eyes open to avoid being cheated and suffering losses.