Nangjing Electric Power Automation Equipment Third Factory CO.,LTD was founded in 1992, specialising in the R & D and production of automatic production and calibration assembly line, automatic warehouse, on-site calibration device, power measurement training cabinet, automatic transformer verification device and other devices. we are the production unit of China's first all electronic single/three-phase watt hour meter calibration device. Our products have been exported to more than 30 provinces of China and overseas. We rely on product sales to build a service network, where products go and where services go. Over the years, our products and services are highly praised by our customers.