Longgang district. According to Baidu map, the market address of second-hand machinery and equipment in Shenzhen is about 240 meters north of Li Chang Community, Ping Long Road, Longgang District, Shenzhen. Shenzhen second-hand machinery and equipment is a large-scale and well-funded company. With the business philosophy of "fairness and justice, honesty and trustworthiness, mutual benefit, small profits but quick turnover" and good business reputation, the business covers all districts in Shenzhen.