There are three R&D centers located in different developed cities of China, about 100 R&D engineers, 134 patents including 16 inventions. We have specified development software to support the design and work with customers. We participate in the formulation of 6 national standards and industry standards. We has established a specified testing and verification laboratory system, which can meet most of testing and verification of products at all stages of design and development including sample test, design verification and production verification, to ensure product quality and market access.