Domestic trade agency; Trade brokerage; Sales of plastic products; Manufacturing of plastic products; Production of industrial textile products; Manufacturing of bio-based materials; Sales of special chemical products (excluding hazardous chemicals); Sales of bio-based materials; Sales of daily sundries; Mold manufacturing; Mold sales; Steel rolling processing; Metal forming machine tool manufacturing; Additive manufacturing equipment manufacturing; Building material production special machinery manufacturing; Plastic processing special equipment manufacturing; Metal forming machine tool sales; Additive manufacturing equipment sales; Plastic processing special equipment sales; Sales of office supplies; Sales of high-quality special steel materials; Sales of elevator accessories.