Adrodd fel Amhriodol

Testun Gwreiddiol (Anodiad: EAW008132 / 1360815)

' coke & gas ovens the hot gas and tar collect in condensers within this building for separation and pumping to the barometers or tar vats for storage '

Dywedwch wrthym pam mae’r cynnwys hwn yn amhriodol *(gofynnol)

Dewis categori *(gofynnol)

Os ‘Arall’ rhowch fanylion (dewisol)

Eich enw (dewisol)

Eich cyfeiriad e-bost (dewisol)

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