Group 1 - The company, Sanwei Co., Ltd. (831834.BJ), specializes in the research, production, and sales of wear parts for bulk material conveying machinery, providing a "one-stop procurement" service for customers [1][2] - The product range includes four main categories: bucket elevators, belt conveyors, scraper conveyors, and screw conveyors, along with engineering plastic wear-resistant materials and screening cleaning accessories [1] - The company serves over 6,000 clients, including leading grain conveying machinery manufacturers and large-scale end-users such as COFCO and Yihai Kerry [1] Group 2 - Sanwei has established itself as a leading enterprise in the manufacturing of core components for bulk material conveying machinery in the grain industry, emphasizing independent innovation [2] - The company has multiple research and development platforms, including the Jiangsu Provincial Engineering Technology Research Center for Bulk Material Conveying Equipment and the Jiangsu Enterprise Technology Center [2] - Continuous investment in innovation has led to improvements in product structure, material formulation, production processes, and key production equipment, resulting in an optimized product structure and increased automation and intelligence [2]