... quality,easy control WHY CHOOSE USPrimary competitive advantages: 1) CE, CCC, ISO9001: 2000, CNAL2) Good price and ... ) International quality warranty: 5 years for whole system and 15 years for vacuum tube.solar energy ... is gradually heated. Place of Origin China Product certification CE,ISO9001,CCC,CNAL Price Terms FOB, CIF ... .291101600*2550*145050 / 100 / 1202040*2550 CE and CCC solar collector system