联系人：郭艳涛
联系电话：875****7;010****72077;
联系地址：北京市朝阳区西直河村(5-1)7号楼303室
网址地址：www.hay-electric.com.cn; www.henganyuan.com; www.hay-electric.com; www.hay-peidianxiang.com; www.gsbyq.net; www.hay-transformer.com; www.hay-electric.com; www.hay-electric.com.cn; www.henganyuan.top;