Guangdong province. According to Baidu map query, the largest second-hand equipment market in China is Huaqiang North Electronic Market located in Shenzhen, Guangdong Province. Located in Futian District, Shenzhen City, Guangdong Province, China, it has 20 specialized electronic markets, covering all aspects of the electronic industry chain, as well as large retail department stores, specialty restaurants, clothing markets, gold and jewelry shopping malls and other formats.