Solar Water Heater Collector 1.CE,ISO9001,ISO14001 and CCC approved 2.factory 3.OEM welcome 4.15 years warranty Solar Water Heater CollectorFreeze Protection: Because the heat pipe is located within the evacuated glass tube, brief overnight temperatures as low as -20oC (14oF) will not cause the heat pipe to freeze.High heat conduction coefficient: is 2000-5000 times of metal materials.High ...
[China Manufacturers]