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Description :
The evacuted tube is a product that is optimized in geometry and performance.
The tubes are compaosed of two concentric glass tubes that are half spherically closed on one side and fused together on the other side. The gap between the tubes is evacuated and afterwards hermetically plugged (vacuum insulation).
The highly selective sputter layer()SK, ISO, CCC, CEShanghai20 days after receipt 30% deposit33China1
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