Flexography (often abbreviated to flexo) is a form of printing process which utilizes a flexible relief plate. It is essentially a modern version of letterpress which can be used for printing on almost any type of substrate, including plastic, metallic films, cellophane, and paper.
sunrisetechnology
Unique Shape of Tank
Aluminum Collector housing to avoid corrosion
Uses copper piping with PUF insulation
Support Structure and Accessories
Capable of 24 hours Hot Water Supply
100 kWA electrical saving per month per panel
http://www.sunrisetechnologyinc.com/solar-water-heater.php