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| Name︰ | Solar water heater(working principle) |
| Model No.︰ | Sp series |
| Brand Name︰ | Guangmang |
| Country of Origin︰ | China |
| Standard Met︰ | ISO9001 |
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| Specifications︰ | Working principle for vacuum tube solar water heter |
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| Working principle for vacuum tube solar water heter |
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