金雷股份(300443.SZ)：产品广泛用于风电、船舶、矿山机械以及能源电力等行业

Group 1 - The company, Jinlei Co., Ltd. (300443.SZ), is primarily engaged in the research, development, production, and sales of wind turbine main shafts and other large castings and forgings [1] - The company's products are widely used in various industries, including wind power, shipping, mining machinery, and energy [1]