The tubes and supports are adjustable, power bearing is average and assure the tubes to use long time. Whole vacuum tube adopts super borax and silica glass. Absorb rate≥ 93%, thermal radiation rate≤ 6%. Resist 25mm hail, using life lasts 15 years. Silicon ring to connect and seal them.
The tubes and supports are adjustable, power bearing is average and assure the tubes to use long time. Whole vacuum tube adopts super borax and silica glass. Absorb rate≥ 93%, thermal radiation rate≤ 6%. Resist 25mm hail, using life lasts 15 years. Silicon ring to connect and seal them.
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