山东矿机：公司链条产品主要用于公司煤矿机械产品，个别产品可以用于船舶

Group 1 - The company, Shandong Mining Machinery, confirmed that its chain products are primarily used in coal mining machinery, with some products applicable for ships [2] - An investor inquired whether the company's chain products could be utilized in large ships, large marine ports, and large water conservancy projects [2]