NPRNTitleType Of SiteRelationNPRN415671TitleMill, Floor 6, Diffwys Slate QuarryType Of Siten/aRelationAssociated withNPRN421260TitleCounter-Balance Incline Between Floors 5 and 6, Diffwys QuarryType Of Siten/aRelationAssociated withNPRN85487TitleDiffwys Casson Slate QuarryType Of Siten/aRelationPart of
