About CompanyZhejiang 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.Our main 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 500,000 sets of solar water heaters,and the all-glass vacuum tube at 6,000,000 pcs.Gaodele has more than 100 items 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.