Guangzhou Sunhong International Trade Co., Ltd. (named Sunhong Intl below) is the sales center of its parent company QSTech, a professional manufacturer of electric measurement equipments with expert sellers, marketing team and technical supporting team works in the metering field for more than 10 years.



We manufacture portable energy meter test instrument, multifunction reference meter, stationary energy meter test equipment and relative spare parts, to meet the requirements of domestic and overseas clients. Our products mainly used in the meter testing centre of electricity...