vacuum boiler heating hot water - lefrancehotel.fr
Vaccum Hot Water Boilers | Reliable Steam Boiler, Thermal . Vacuum Hot Water Boiler Advantage 1. Safe and reliable: Vaccum hot water boiler adopt phase change working principle. its medium circulation system pressure below the atmospheric pressure, internal absolute pressure is 0.02 ~ 0.08 MPa, so that it can't explode. Learn More
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