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How dose sewage source heat pump works?
2019-04-16
Using domestic sewage? We are saving your MONEY! Sewage source heat pump is one of the most promising heat pump technologies in the world.It is estimated that by 2020, the new residential heating demand area in seven major provinces and cities in north China will exceed 400 million square meters.At present, the area of central heating (non-clean energy) in north China is 5.13 billion square meters...
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