Holley Group Co., Ltd. is the biggest manufacturer of Watt-hour meters in China. For consecutive years, Holley takes the leading position in the field with its advanced technology in production management. Recently, Holley is focusing on expanding foreign markets, especially in developing countries. Its exporting sales has reached USD10 million per year. Through which, Holley gained rich experience in exporting its products and service after sale. Holley is keeping itself ready to give our clients better products and services.