1) Material:

a) Inner water tank: imported SUS304 stainless steel

b) Outer water tank: galvanized steel alloy or stainless steel

c) Bracket: galvanized steel or aluminum alloy

2) Solar vacuum tube: common or tri (trialent)-element

   a) Size: 47* 1,500mm   47*1,800mm   58*1,800mm 58*2,000mm

b) Quantity: 10

c) Hail resistance: diameter 25mm

3) Temperature insulation layer:

a) 50-70mm imported polyurethane; keep same temperature and high pressure foam

b) Heat preservation: 72 hours

4) Capacity: 90L,108L,120L,144L,150L,180L,200L,240L,300L,360L

5) Tank diameter: 420mm,460mm

6) Max. Pressure bearing: 0.6MPa

7) ISO9001 / CE certificate

8) 3 years' international responsibility for free repairing or exchange due to original

quality problems