... condenser, evaporator, heat pump,air cooler,air conditioner and solar water heater manufacturer in China, which has more than 15 years ... Europe,USA, Japan and Middle east etc. Non-pressurized Solar Water HeaterMaterial: 1. Inner tank: 0.4mm thickness SUS304-2B ... galvanized steel plate 6. Swimming pool, hotel etc. hot water project using rooftop unpressurized solar hot water system made in china