Why didn't Chen Lihua arrest her for selling cultural relics?

Because Chen Lihua is a cultural relic acquired by legal means. In the early 1980s, Chen Lihua learned that a Chinese-style furniture factory in Beijing preserved many cultural relics acquired during the Cultural Revolution, including furniture products made of precious wood such as rosewood, Jin Sinan and Huang Huali in the Ming and Qing Dynasties, and there was no real owner at that time. Later, through his own relationship, Chen Lihua got a part at a very low price. In order to get a good price for the baby, Chen Lihua immigrated to Hongkong through connections and sold things there. So it's not selling cultural relics.