大连重工：截至目前，公司产品未包含煤矿掘进机

Core Viewpoint - Dalian Heavy Industry has confirmed that its products do not currently include coal mining excavation machines, focusing instead on various large-scale equipment and core components for multiple industries [2] Group 1: Company Overview - Dalian Heavy Industry is a major state-owned enterprise in the heavy machinery sector, primarily engaged in the development, research, and sales of large-scale complete equipment and core components [2] - The company provides intelligent service solutions for the entire lifecycle of high-end equipment across key industries such as metallurgy, ports, energy, mining, engineering, transportation, shipbuilding, and environmental protection [2] Group 2: Product Focus - The company's main product lines include material handling equipment, metallurgical equipment, new energy equipment, transmission and control systems, and marine equipment [2]