Zhejiang Gaodele New-Energy co., ltd was established in 18th Nov.2000, which located in the beautiful scenic Nanbei lake, Haiyan, Zhejiang, covers an area of 51, 000 square meters. We offer a wide variety of products, including: - Solar water heater - Vacuum tube Solar water heaters. Our mainly produces including:all-glass vacuum tubes, solar water heaters and other related solar thermal products.We have an independent R&D team and complete industrial chain, output reaches 300, 000sets of solar water heaters, and the all-glass vacuum tube at 6, 000, 000 ***** has more than 100items of patented tech., and successfully developed three high-copper silver titanium purple, High frequency solar tube, vector solar tube cores of solar vacuum tubes, which fill up many gaps in the industry on solar collecting, heat transfer and thermal insulation. We sincerely look forward to your cooperation to create a better future.