vacuum tube
vacuum tube: we supply products with good quality and after-service
vacuum tube
The surface of the tubes is completely rinsed by the water removed in so that the selective coating can be adhered to the tubes firmly. It guarantees the efficiency and service life of the collector tubes.
Advanced skills in coating and efficient system in evacuating provide the absorption of selective coating .., which greatly improved the performance of the collector tubes
The vacuum, evacuated collector tubes can be applied in the water heater under various weather conditions
vacuum tube
