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    Changhe Group has always adhered to the technical research and development and innovation of products. In the past three years, it has invested huge sums of money for the construction of scientific research teams and the research and development of new products. With the support of advanced technology and powerful equipment, the scientific research team has continuously developed a variety of high-quality products that are more professional, environmentally friendly and durable than similar products on the original basis, including silicon PU courts and SPU runway "internationally leading" -level products. National patents. With the continuous improvement of Changhe's scientific research strength, more patent projects are being examined and approved.

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