山东矿机：精密部件加工为长空雁公司依托其加工能力进行订单的承接

Group 1 - The core viewpoint of the article is that Shandong Mining Machinery is leveraging its processing capabilities to undertake orders for precision component manufacturing through its subsidiary, Chang Kong Yan Company [2] Group 2 - Shandong Mining Machinery responded to investor inquiries on an interactive platform regarding its business operations [2] - The company is focusing on precision component processing as a key area for order acquisition [2]