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high effecient ripple glass vacuum tube
High efficient ripple glass vacuum tube:
1.High absorption efficiency
2.workability in tough weather
3.Low heat loss
Tube Length of ripple glass vacuum...
New ripple all glass solar vacuum tube
New ripple all glass solar vacuum tube:
1.High absorption efficiency
2.workability in tough weather
3.Low heat loss
Tube Length1200(±5mm)1500(±5mm)1700-1800(±5mm)2000(±5mm)AbsorbingcoatingpropertiesConfigulation1200(±5mm)...