Flat plate solar collector 1.high pressure tested 2.Glazed collector 3.have passed EN12975 1,2 4.Solar Keymark certificate Flat plate solar collectorThe Characteristics of Solar Flat Collector: 1) Integrated frame with high absorption efficiency.2) Germany High Efficiency Vacuum Coating used is more sturdy and durable;3) The high-effect seismic resistance and corrosion resistance;4) The flat- ...