Stand: ￡ 1.8mm by adding after the galvanized sheet, the high temperature phosphate electrostatic spray 
 Vacuum tubes: a three-target interference film process, the absorption layer of stainless steel, aluminum nitride, high temperature air drying degree of film is not long-term aging, absorb 12% more than the 65% lower emission than the substantial increase in set of heat. King of the three super-efficient than regular sets pipe collector efficiency by 20% or more. 
 Water tank: SUS304-2B food grade use of stainless steel, round head strong pressure inside. 
 Carton: Imported color steel or titanium white pearl board 
 Tube number: 16, 18, 20, 24, 30, 45 
 Insulation layer: Imported polyurethane pressure foam insulation, foam small density, closed cell rate, more suitable for cold regions use.