1.solar water heaters 2.Test pressure:9 bar 3.Insulation:Polyurethane 55mm ... collector China,heat pipe,solar products,solar thermal collector,solar water heaters,solar panel,vacuum solar collectorTechnology Specifications MODELLigthing(m2)Heat ... pipe(mm)Supply hot water(L/°c)20/40"containerGWKGdiameterlengthNoSPHPC 47/121.26Φ4715001270/ ...