There are ten large backbone manufacturing enterprises in xd group, namely Xi 'an Xidian High Voltage Switch Co., Ltd., Xi 'an Kathy High Voltage Electric Co., Ltd., Xi 'an Xidian Transformer Co., Ltd., Xi 'an Zhongte Electric Co., Ltd., Xi 'an Xidian High Voltage Electric Porcelain Co., Ltd., Xi 'an Xidian Power Capacitor Co., Ltd., Xi 'an Xidian Micro Motor Co., Ltd., Xi 'an Xidian Power Rectifier Co., Ltd. and Xi 'an Xidian Electrical Materials Co., Ltd.