证券日报网讯2月2日，大宏立（300865）在互动平台回答投资者提问时表示，公司的主营业务为砂石、 矿山破碎筛分成套设备的研发、生产、销售，主要为客户提供一体化环保智能破碎生产装备和整体解决 方案，可广泛应用于砂石骨料行业、金属矿采选行业。 ...

Core Viewpoint - The company focuses on the research, production, and sales of complete sets of equipment for sand and stone, as well as mining crushing and screening, providing integrated environmental-friendly intelligent crushing production equipment and overall solutions [2] Group 1: Business Overview - The company's main business includes the development, production, and sales of sand and stone, and mining crushing and screening equipment [2] - The products are widely used in infrastructure projects such as transportation, housing construction, urban public construction, and water conservancy and hydropower [2]