Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
British Iron & Steel Research Association, report
5-page report, typed in black ink on cream paper. Title: "The British Iron and Steel Research Association Iron Making Division: Application of Data from Plant Trials to Sinter Manufacture"
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.