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The Production Process of Vacuum Solar Tubes
 
First Process: Automatic Cropping
 
 

Second Process: End Rounding and Exhaust Tube connecting
 
 
Third Process: Water Purifying, Tube Cleaning and Drying
 
 
 

Forth Process: Filming Process
 
 

Fifth Process: Sealing Process
 
 

Sixth Process: Vacuumizing Process
 
 
Seven Process: High-frequency and annealing process
 
 
 
Go back to Solar Vacuum Tube Technical Data Pages
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