Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Coal Distillation. Steam Raising. By-product Recovery (booklet)
Content summary - details of the 'Babcock' low temperature coal distillation system. 17 page illustrated booklet.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.