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single-target-vacuum-tube

2 product
  • Single-target vacuum tube

    Single-target glass vacuum tube, high efficiency and good performance, especially for solar energy collecting to heat hot water

    US $2.3-5 / set

    Min. Order: 1000set

  • single target vacuum tube

    single target vacuum tube
    1 high efficiency and good performance
    2 especially for solar energy collecting to heat hot wat

    US $2.3-5 / set

    Min. Order: 1000set