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Bellows Triple Vacuum tube Solar Water Heater Parts
specification
Diameter * Length: Φ58*1800
Pressure: 1MPa
Material: All glass double tube co-axial structure and High borosilicate 3.3 glas
Material of coating: Al N/Al N-SS/Cu
Heat-loss coefficient: ≤0.3w/ m2*°C)
PC:The length of the Vacuum tube can be made by the customer's request (viable 1.2m-2.1m)
Working principle








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