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SOLAR HEAT COLLECTING APPARATUS WITH MECHANICALLY CONVECTIVE CIRCULATION OF WATER IN HEAT ABSORBING CAN AND HOT WATER TANK BY FACING INCLINED SURFACE OF HEAT ABSORBING CAN AGAINST DIRECT1RAYS OF SUN
SOLAR HEAT COLLECTING APPARATUS WITH MECHANICALLY CONVECTIVE CIRCULATION OF WATER IN HEAT ABSORBING CAN AND HOT WATER TANK BY FACING INCLINED SURFACE OF HEAT ABSORBING CAN AGAINST DIRECT1RAYS OF SUN