We supply all different kinds of solar water heater with good quality and very competitive price. SRCC,SOLAR KEYMARK,CE,ISO, Specification:Inner tankSUS304/316 stainless steel or porcelain enamelOuter shell of tankGalvanized stainless steel or stainless steelSupporting frameGalvanized stainless steel or stainless steelInsulating layerPolyurethane foam, thickness is 60mmWorking pressurizedWorking ...