shanxi du run fireproof material limited company is a company engaged in functional fireproof material research and development, production and processing, sales of enterprises. And long-term international trade, in related fields to provide professional consulting services, and engaged in well-known products sales agent. The company's business involves construction, shipbuilding, high-speed trains, nuclear power and offshore oil drilling platforms. The company's products are mainly used for all kinds of fire doors, fire-proof (fire-resistant) windows, partition walls, ceilings, floors, pipes and cables through wall protection, elevators, safes, etc.