Nanjing BKN Automation System Co., Ltd. is headquartered in Nanjing, the ancient capital of China. The technology originated from a university in Nanjing. It is currently a high-tech enterprise with first-class professional and advanced non-destructive testing instruments and equipment. BKN has developed global forefront eddy current, ultrasonic, magnetic flux leakage, and has obtained many national patents. BKN focus on standard and non-standard parts testing for tube, bar, wire and new materials. Products are used in many industries, and were exported to more than 30 countries and regions.