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Recent content by norbertrudolf

  1. norbertrudolf

    Regenerative Air heater

    could anyone pleaee explain the numbering system of Ljungström air or gghs to me. for ex. 28,5 VIT 88 or 18 H 57
  2. norbertrudolf

    Ljungstrom Air heater

    who can explain the naming of Ljungström AHs. for example 28,5 VIT 88 or 32 H 63 and so on and so on. There must be any system. please explain

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