Flat plate solar collector water heater engineering

Commonpraise Solar is a expert for manufacturing, R & D ,installtion and marketing solar water heater , especially the flat plate solar collector technology is very profession.
The solar collector can be produced through ultrasonic bonding technology by welding the copper fins and lead conduit as a whole, or through high frequency bonding by welding the copper fins and copper tube as a whole,the collection tube is directly welded(melted) with the branch tube without reducer union. The selective coating of high quality is applied to its surface, like galvanized chromium coating or titanium nitride and oxide coating, therefore, the heat-absorption efficiency is high while the emissivity is low, good adhesive attraction, corrosion resistance and a long lifetime.
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