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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6406776
    Disgrifiad
    Dinorwig Power Station - one leaflet produced by First Hydro, dated c2000, including colour plans of pumping and generating systems.
    Enw Casgliad
    Additional Information
    Cyfrwng
    Text, Graphic.
    Cychwynnwr
    First Hydro