1. Inner tank: SUS304-2B food grade stainless steel
2. Outer tank: coating steel board
3.Material : imported polyurethane

Material   

A) Inner water tank       sus304-2B food grade stainless steel .

B) Outer water tank        coating steel board

C) Bracket                        color steel with electrostatic plastic coating

Solar vacuum tube 

  A) planting                        Aluminum nitride .

B) Size                                47mm×1500mm / 58mm×1800mm.

C) Qty                                   15/20/25/30pcs

 Temperature insulation layer

A) Material                            Imported polyurethane f rom Bayer Germany .

B) Thickness                        50mm for maximum 72 hrs  conservation .

C) Density                              42 kgs/ Cu

Tank capacity

A) 90/120/150/180 liters   47×1500mm.

B) 150/200/250/300 liters 58×1800mm

Tank  diameter     410/460mm

Accessories    Optional electrical heater /assistant tank

ISO9001    2000 / CE certificate

3 years international quality warranty

Packing : Vacuum tube /carton , water tank / carton , frame /carton

Advantage    the merits of this kind of product  are as follows:

                      1. Stable and reliable performance and well wind resistance

                      2. Vacuum  heat-collecting tubes at high temperature

                      3. Dual-purpose  brackets for both flat and inclined roof

                       4. Meeting the demand of well-to -do families

                        5. Economical goods

  All in all   , it is a wonderful ,  worth buying  product .