MLSUN GROUP Co., Ltd. is a solar factory located in Tianjin, China., near Beijing, a professional manufacturer of solar energy products with more than 10 years of experience in production, research and development. We specialize in CSP (Concentrated Solar Power). Annual production capacity of 500, 000 sqm, exported to more than 50 countries. We developed an inner tank with a porcelain enamel coating. Solar vacuum tube (Big-Diameter tube, Two-Ends-Open tube) Solar water heater ...