Origin	China
Model Number	sdtj-12-1800
Brand Name	BOJIA/OEM

Our company have gotten the certificate of ISO9001:2000,CCC,and CE.all the productots are exproted to the regions including North American,Europe,Asia etc.

The solar water heater introducement:

* 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

* Temperature insulation layer
A) Material: Imported polyurethane (from Bayer Germany)
B) Thickness: 50mm for maximum 72 hours conservation
C) Density: 42kgs / Cu

Solar vacuum tube is the most important segment,the following are the detail introducement.

Products primary competitive advantage

1. Advanced technology

Our company use 3 target magnetron sputtering plating technology,which introduce from Germany and also called interferometer coating technology.

2.competiity price and excellent quality

3.good quality of service.

4. small order is accepted.

Special charater:

1. metal reflecting layer(copper)

2.absorbance layer(ss aluminumnitride metal ceramic)

3.remittance reducer layer(aluminumnitride)

4.diameter of 47mm,58mm,70mm are available and we promise the serviece life of vacuum tube over 15 years.