New tri-element plated vacuum tube,super efficient with outer glass wall thickness over 2.0mm.Widely used on solar water heater
We are leading manufacturer for solar vacuum tube in China since 1998,with annual output over 10 million tubes,tube diameter available at 47mm,58mm and 70mm,length range from 800mm up to 2100mm,glass wall thickness at 1.6mm,1.80mm and 2.0mm.All of our tube coating plated with advanced absorber of AL-ALN and CU/SS-ALN which provide extremly high absorption rate.
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