杭钢股份：公司业务以宁波钢铁所从事的钢铁业务为主，以数字经济业务为辅

Group 1 - The core business of the company is primarily focused on steel production and sales, with a supplementary emphasis on digital economy initiatives [1] - The company operates in the steel industry, producing steel and its rolled products, and follows a self-production and self-marketing business model [1] - In addition to its main operations, the company also engages in trading of some raw materials and steel products [1]