The combined metal heat collecting pipe for solar water heater belongs to the technical field of solar energy application, relating to combined metal heat collecting pipe for solar water heater.
太阳能热水器用组合式金属集热管属于太阳能应用技术领域中，涉及的太阳能热水器用组合式金属集热管。
The combined metal heat collecting pipe for solar water heater belongs to the technical field of solar energy application, relating to combined metal heat collecting pipe for solar water heater.
太阳能热水器用组合式金属集热管属于太阳能应用技术领域中，涉及的太阳能热水器用组合式金属集热管。
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