... solar water heater common for home use simple structure, high quality economical choice CCC, CE, SABS Sunshore 18-vacuum-tube non-pressure solar water ... about 1200 workers, and 100 advanced production lines for solar water heaters and vacuum tubes, with all the key procedures ... automatically. Our production capacity is: 1 million sets of solar water heater per annum, 15 million pcs vaccum tube per ...