Flat Solar panel 1.Solar Keymark approved 2.Absorber,bluetec eta plus imported from Germany 3.Max. operating pressure: Flat Solar Panel1.CE,CCC,ISO9001 ... ,ROHS ,Solar Keymark,approved 2.OEM/ODM is welcomed 3 ... forming insulation, depth 50mm.· 3.2/4.0mm low-iron solar glass with max. light transimission, which is meet to the ...