Currently, WANJIAQING (ZHONG SHAN) APPLIANCE CO.,LTD has two sophisticated plants covering more than 3600 square meters with 170 workers and 30 technicians.We develop products such as electric water heater ,gas water heater ,air to water heat pump, hot water heat pump and Ground source heat pump which have received trust and fame from domestic and foreign consumers. big capacity water tank,100-600L,with pressure,also with copper inside,can meet your special request.we promise to offer our consumers reasonable price and product of high quality.