1.high efficiency 2.high heat resistance 3.high cold resistance 4.different kinds Meiguang   Solar vacuum tubeFirm Selective coating Perfect process technology Structure: all-glass double tube co-axial strcuture  Item No. Specification Effective...

1.Host product warranty 3 years,1-year attachment. 2.24 hours a day. Perfect series (mainstream model) launch three activation technologyCollector: "boiling" three tenors tube 58 *1800, 58*2100, 70 *2100The inner bag of the water tank : SUS304-2B food-grade stainless...

1.Standard 3.3 high-boron-silicon glass-pipe 2.Low coefficient of heat loss 3.Good performance & price The internal structure of the vacuum tube    ...