National patent

Changhe group has always adhered to the technical research and development and innovation of products. In the past three years, it has invested a huge amount of money in the construction of scientific research team and the research and development of new products. With the support of advanced technology and powerful equipment, the research team has continuously developed a variety of high-quality products that are more professional, environmental friendly and durable than similar products, including "international leading" products of silicon Pu stadium and SPU runway, and has 16 national patents. With the continuous improvement of Changhe scientific research force, more patent projects are under examination and approval.