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China Factory OEM High Efficiency Vacuum Tube 150L Zero Pressurized Machine Solar Hot Water Heater

China Factory OEM High Efficiency Vacuum Tube 150L Zero Pressurized Machine Solar Hot Water Heater
Product DescriptionVacuum Tube Non-pressurized Solar Energy Water Heater  Product Model GV150REFF  GV200REFF GV300REFF...

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