We have more than 100 independent patents, including 3 invention patents and more than 60 utility model patents. The R&D center is equipped with high-tech equipment tools and advanced technology, with a full set of testing equipment, a total of more than 40 people in the R & D team to constantly pursue new products, new processes, new materials and new methods, every year to complete more than 20 new product development and production, invested R & D funds amounted to 9 million yuan.