In henan province, the registration address of the japanese letter company, inc., is located at 101 tamland street in the zhengzhou new technology development area. The legal entity is the zhengzhou city market supervision authority. The legal entity is represented by li jianxian and operates in the areas of sensor, instrumentation, mechanical and electrical equipment development, production, marketing and maintenance services; development, marketing and maintenance services for embedded systems and software; cloud platform services; instrument testing and verification; environmental monitoring and services; technology services for power generation systems and nuclear electrical equipment; import of high-voltage electrical equipment for testing and technical services; technical services for the clean-up system for the recovery of sulphur hexafluoride and mixed insulation gases; electrical engineering construction and installation; automated system engineering; computer technology se...