三钢闽光：公司不生产不锈钢产品

Group 1 - The company, Sangang Mingguang, does not produce stainless steel products, focusing instead on construction materials, metal products, medium and thick plates, high-quality round steel, and H-beams [2] - An investor inquired about the company's capability to produce stainless steel for rocket manufacturing [2] - The company's response indicates a clear specialization in specific steel products rather than diversifying into stainless steel [2]