Hebei Tenglong brilliantly commemorates the 70th anniversary of the victory of the Anti-Japanese War and the victory of the Anti-Fascist War! !! Hebei Tenglong Brilliant Renewable Resources Utilization Co., Ltd., founded in 2014, is affiliated to Beijing Tenglong Zhengli Waterproof and Insulation Engineering Materials Co., Ltd. The company mainly researches, develops, produces and sells utility model thermal insulation building materials. Representative product: A / B dry mix composite light aggregate, use: civil construction. Raw materials: waste polyurethane rigid foam, rock wool slag and other industrial waste. Advantages: The density of the concrete is reduced, and the pores are increased. Under the same volume. The addition of polyurethane foam can reduce the weight of concrete by 29% -30%. Reducing the load bearing of the building and extending the service life, not only protect the ecological environment, but also find new recyclable resources for material production.