Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Deep Duffryn Colliery, plan
National Coal Board South Western Division. Deep Duffryn Colliery Coal Preperation Plant Solids Flow Sheet. Date 12.3.63
Pwnc
Diwydiant
Rhif yr Eitem
80.109I/14
Mesuriadau
Meithder
(mm): 507
Lled
(mm): 753
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.