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Heat pipe vacuum tube
This tube is for pressure solar system, water will not inside tube, and heat faster than normal tube.
Glass tube dimension: 58*1800mm
Heat pipe dimension: 8(14-70)x0.7mmx1700FS/8(24-70)x0.7mmx1700FS/8(14-80)x0.7mmx1700FS/8
Aluminum fin: 1620mm length
Freeze resistance: <-35℃
Hail resistance: 25mm
Coating of vacuum tube: ALN-SS-CU
