信：Ershoudaquan

Ershou Daquan is an online marketplace focused on second-hand, idle, surplus, and used equipment and goods. Its purpose is to make buying and selling pre-owned items easier by bringing together sale, purchase, and recovery information from across China. The site covers a broad range of machinery, including mining, drying, chemical-processing, food-production, construction, environmental, building-material, agricultural, and machine-tool equipment. Listings also feature industrial equipment, vehicles and components, and other used or idle goods, with examples ranging from crushers and screening systems to drilling rigs and machine tools.

Users can browse equipment for sale, post purchase requests, and submit information for free. The platform also provides news and practical product information, regional listings, and a directory of recycling buyers. For sellers and recommended buyers, it offers optional paid services such as image and video processing, listing publication, priority placement, and featured promotion. Ershou Daquan presents itself as an information-matching platform; it states that transactions are arranged by buyers and sellers, who are responsible for their own transaction security.