In the boiler renovation project, the air source heat pump unit can be used instead. At the same time heating a ton of water, energy efficiency is 2 times the coal-fired boiler, and the coal-fired boiler project is used in
In the boiler renovation project, the air source heat pump unit can be used instead. At the same time heating a ton of water, energy efficiency is 2 times the coal-fired boiler, and the coal-fired boiler project is used in