1.Warranty:five years 2.Unpressurized 3.Certificate: CE, ISO9001,CCC 4.Delivery time: in 15 days 5.OEM,small order provide Features: 1) Reliable and efficient twin-glass solar tubes; 2) Copper heat pipes for rapid heat transfer; 3) Easy plug-in installation; 4) Free maintenance; 5) Suitable for mains pressure water (up to 1.0 bar); 6) Corrosion resistant silver brazed copper header; 7) Aluminum ...
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